Worksheets

Worksheets
 Worksheets
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Differentiation
This product includes 159 differentiated math worksheets aligned to the 1st grade common core. The
worksheets are differentiated into 3 levels to match the needs of the individual learner to his or her
current level of understanding. This allows the teacher to present the same content to students at
various stages of mastery. The skill level is indicated by 1,2, or 3 stars in the top right-hand corner of
each worksheet. One star worksheets are useful for students who need extra scaffolding to help them
reach the learning target, two star worksheets are helpful for students who are beginning to grasp
the concept, and three star worksheets are intended to challenge students who are demonstrating
proficiency.

Need Support Getting There Need a Challenge

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Worksheets
Common Core Covered: Number & Operations in Base Ten

CCSS.MATH.CONTENT.1.NBT.A.1
Read and write numerals to 120 and represent a number of objects with a written numeral.
CCSS.MATH.CONTENT.1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones.
CCSS.MATH.CONTENT.1.NBT.B.2.A
10 can be thought of as a bundle of ten ones — called a "ten.“
CCSS.MATH.CONTENT.1.NBT.B.2.B
The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven,
eight, or nine ones.
CCSS.MATH.CONTENT.1.NBT.B.2.C
The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six,
seven, eight, or nine tens (and 0 ones).
CCSS.MATH.CONTENT.1.NBT.B.3
Compare two two-digit numbers based on meanings of the tens and ones digits, recording
the results of comparisons with the symbols >, =, and <.
CCSS.MATH.CONTENT.1.NBT.C.5
Given a two-digit number, mentally find 10 more or 10 less than the number, without having
to count; explain the reasoning used.
Clickable: Click to be taken to each section.

2.1 Identifying Tens & Ones

2.2 Value of Tens & Ones

2.3 Standard, Expanded, & Word

2.4 Comparing 2-Digit Numbers

2.5 “Bundles” or Groups of Ten

2.6 Ten More & Ten Less

 identify
the tens and
ones in a
2-digit
number.

©2016 Tandi Churchill Bite-Size Teaching

 The numbers
from 1 1 -19 are
composed of a
ten and
1,2,3,4,5,6,7,8, or 9
ones.
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Write the tens and ones in the place value chart.

tens tens

ones
ones
Tens Ones Tens Ones

1 5
tens tens

ones ones
Tens Ones Tens Ones

tens tens

ones ones
Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Write the tens and ones in the place value chart.

tens tens

Tens Ones Tens Ones

ones
ones

tens tens

ones
Tens Ones Tens Ones

tens tens

ones
Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Write the tens and ones in the place value chart.

Tens Ones Tens Ones

1 5

Tens Ones Tens Ones

Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Write the tens and ones in the place value chart.

Tens Ones Tens Ones

Tens Ones Tens Ones

Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Create 2-digit numbers within 20. Draw tens and ones to

match.

Tens Ones Tens Ones

1 5

Tens Ones Tens Ones

Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Create 2-digit numbers. Draw tens and ones to match.

Tens Ones Tens Ones

Tens Ones Tens Ones

Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2.B

Write the 2-digit number inside the box.

1 ten 2 ones = 12
1 ten 5 ones = 1 ten 8 ones =
tens ones tens ones

1 ten 7 ones = 1 ten 6 ones =

tens ones tens ones

1 ten 3 ones = 1 ten 1 one =

tens ones tens ones

1 ten 9 ones = 1 ten 2 ones =

tens ones tens ones

1 ten 4 ones = 2 tens 0 ones =

tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.B

Write the 2-digit number inside the box.

1 ten 2 ones = 12
1 ten 5 ones = 1 ten 8 ones =

1 ten 7 ones = 1 ten 6 ones =

1 ten 3 ones = 1 ten 1 one =

1 ten 9 ones = 1 ten 2 ones =

1 ten 4 ones = 2 tens 0 ones =

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.B

Create 2-digit numbers within 20 by adding ones to the tens.

1 ten 2 ones = 12

1 ten ones = 1 ten ones =

1 ten ones = 1 ten ones =

1 ten ones = 1 ten ones =

1 ten ones = 1 ten ones =

1 ten ones = 2 tens ones =

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.B

Count the bundles of ten and ones. Write each 2-digit number on the lines.

1 2 1 2 3

12
tens ones tens ones tens ones

1 2 3 4 5 6 7 8 9 1 2 3 4 5 6

tens ones tens ones

1 2 1 2 3 4 1

tens ones tens ones tens ones

1 2 3 4 5 6 7 1 2 3 4 5 6 7 8

tens ones tens ones

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.B

Count the bundles of ten and ones. Write each 2-digit number on the lines.

12
tens ones tens ones tens ones

tens ones tens ones

tens ones tens ones tens ones

tens ones tens ones

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.B

Count the bundles of ten and ones. Write each 2-digit number on the lines.

12

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Add the tens and ones together to create the whole.

tens ones whole ones tens whole

14
10 + 4 = 14 10 4 4 + 10 = 14

tens ones whole

19 ones tens whole

10 + 9 =
10 9 9 + 10 =

tens ones whole

16 ones tens whole

10 + 6 =
10 6 6 + 10 =

tens ones whole

15 ones tens whole

10 + 5 =
10 5 5 + 10 =

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Add the tens and ones together to create the whole.

tens ones whole ones tens whole

18
10 + 8 =
10 8 8 + 10 =

tens ones whole ones tens whole

17
10 + 7 =
10 7 7 + 10 =

tens ones whole ones tens whole

12
10 + 2 =
10 2 2 + 10 =

tens ones whole ones tens whole

13
10 + 3 =
10 3 3 + 10 =

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Separate the tens and ones then add together to make each whole.

tens ones whole ones tens whole

14
10 + 4 = 14 10 4 4 + 10 = 14

tens ones whole

19 ones tens whole

+ = + =
10 9
tens ones whole
16 ones tens whole

+ = + =
10 6
tens ones whole
15 ones tens whole

+ = + =
10 5
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Separate the tens and ones then add together to make each whole.

tens ones whole ones tens whole

18
+ = + =
10 8
tens ones whole ones tens whole
17
+ = + =
10 7
tens ones whole ones tens whole
12
+ = + =
10 2
tens ones whole ones tens whole
13
+ = + =
10 3
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.B
Name Page 1 of 2

Separate the tens and ones then add together to make each whole.

tens ones whole ones tens whole

14
10 + 4 = 14 10 4 4 + 10 = 14

tens ones whole

19 ones tens whole

+ = + =

tens ones whole

16 ones tens whole

+ = + =

tens ones whole

15 ones tens whole

+ = + =

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.2.B
Name Page 2 of 2

Separate the tens and ones then add together to make each whole.

tens ones whole ones tens whole

18
+ = + =

tens ones whole ones tens whole

17
+ = + =

tens ones whole ones tens whole

12
+ = + =

tens ones whole ones tens whole

13
+ = + =

©2016 Tandi Churchill Bite-Size Teaching

 The two digits
of a 2-digit
number
represent
amounts of tens
and ones.
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Circle the digit on each gumball in the given place value.

ones
8 is circled because
68
tens ones
it’s in the ones place.

ones tens tens ones

68tens ones
52
tens ones
26
tens ones
34
tens ones

tens ones ones tens

79tens ones
45
tens ones
83
tens ones
57
tens ones

ones tens ones tens

90tens ones
36
tens ones
62
tens ones
78
tens ones

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Circle the digit on each gumball in the given place value.

ones
8 is circled because
68 it’s in the ones place.

ones tens tens ones

68 52 26 34
tens ones ones tens

79 45 83 57
ones tens ones tens

90 36 62 78
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Create 2-digit numbers. Then circle the given place value.

ones
8 is circled because
68 it’s in the ones place.

ones tens tens ones

tens ones ones tens

ones tens ones tens

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Fill in the place value charts by identifying the tens and ones.

Tens Ones Tens Ones Tens Ones

3 5

Tens Ones Tens Ones Tens Ones

Tens Ones Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Fill in the place value charts by identifying the tens and ones.

Tens Ones Tens Ones Tens Ones

3 5

Tens Ones Tens Ones Tens Ones

Tens Ones Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Create 2-digit numbers on the owls then fill in the place value charts.

Tens Ones Tens Ones Tens Ones

3 5

Tens Ones Tens Ones Tens Ones

Tens Ones Tens Ones Tens Ones

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Color the student with the number in the correct place.

6 in the ones place. 4 in the tens place.

62 36 45 94
8 in the tens place. 5 in the ones place.

48 80 56 25
3 in the ones place. 9 in the tens place.

73 39 49 92
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color the student with the number in the correct place.

6 in the ones place. 4 in the tens place.

62 36 45 94
8 in the tens place. 5 in the ones place.

48 80 56 25
3 in the ones place. 9 in the tens place.

73 39 49 92
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Create sets of 2-digit numbers with each given number in the correct place.

6 in the ones place. 4 in the tens place.

56 36
8 in the tens place. 5 in the ones place.

3 in the ones place. 9 in the tens place.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Write the number of ones in each 2-digit number.

52 = 5 tens 2 ones
36 = 3 tens ones
85 = 8 tens ones
22 = 2 tens ones
74 = 7 tens ones
90 = 9 tens ones
63 = 6 tens ones

©2016 Tandi Churchill

49 = 4 tens ones
Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Write the number of tens and ones in each 2-digit number.

52 = 5 tens 2 ones
36 = tens ones
85 = tens ones
22 = tens ones
74 = tens ones
90 = tens ones
63 = tens ones

©2016 Tandi Churchill

49 = tens ones
Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Create 2-digit numbers, then write the number of tens and ones.

52 = 5 tens 2 ones
= tens ones
= tens ones
= tens ones
= tens ones
= tens ones
= tens ones
= tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color all the fish with a 5 in the ones place.

35 58

35 25 56
54
50
53 65
85
58 75
45 57 52
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color all the fish with a 5 in the ones place.

35 58

35 25 56
54
50
53 65
85
58 75
45 57 52
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Create 2-digit numbers, some with a 5 in the ones place.

Then color all the fish with a 5 in the ones place.

35 58

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Color all the basketballs with a 9 in the tens place.

29 92

49 79 98
93
95
91 19
89
29 92
69 90 59
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color all the basketballs with a 9 in the tens place.

29 92

49 79 98
93
95
91 19
89
29 92
69 90 59
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Create 2-digit numbers, some with a 9 in the tens place.

Then color all the basketballs with a 9 in the tens place.

29 92

©2016 Tandi Churchill Bite-Size Teaching

Name Common Core: 1.NBT.B.2

Match the correct place value chart to the 2-digit number on each owl.

Tens Ones Tens Ones Tens Ones Tens Ones

Tens Ones Tens Ones Tens Ones Tens Ones

Name Common Core: 1.NBT.B.2

Glue into the correct column by deciding if the underlined digit is in the ones or tens place.

Tens Ones

45 62 30 28
93 74 22 56
 determine
the value of
each digit in a
2-digit
number.

©2016 Tandi Churchill Bite-Size Teaching

 The two digits
of a 2-digit
number
represent
amounts of tens
and ones.
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Write the value of the underlined digit inside each box.

35 3 is in the tens
place so it has a
30 value of 30.

26 50 78 44 62 97

85 17 36 53 25 77

19 48 60 88 74 34

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Underline one of the digits, then write its value inside the box.

35 3 is in the tens
place so it has a
30 value of 30.

26 50 78 44 62 97

85 17 36 53 25 77

19 48 60 88 74 34

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

Create 2-digit numbers, underline one of the digits, then write its value.

35 3 is in the tens
place so it has a
30 value of 30.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2
Page 1 of 2

Color in the base ten blocks to show the value of each 2-digit number.

tens
ones

65
tens

ones

29
tens

ones

©2016 Tandi Churchill

86Bite-Size Teaching
 Name Common Core: 1.NBT.B.2
Page 2 of 2

Color in the base ten blocks to show the value of each 2-digit number.

tens

ones

57
tens

ones

93
tens

ones

©2016 Tandi Churchill

44Bite-Size Teaching
 Name Common Core: 1.NBT.B.2
Page 1 of 2

Color in the base ten blocks to show the value of each 2-digit number.

65

29

©2016 Tandi Churchill

86Bite-Size Teaching
 Name Common Core: 1.NBT.B.2
Page 2 of 2

Color in the base ten blocks to show the value of each 2-digit number.

57

93

©2016 Tandi Churchill

44Bite-Size Teaching
 Name Common Core: 1.NBT.B.2
Page 1 of 2

Create 2-digit numbers then color in the base ten blocks to show the value.

65

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2
Page 2 of 2

Create 2-digit numbers then color in the base ten blocks to show the value.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

How many ones make up each set of tens?

3 tens = 30 ones 3 tens is the same as

10+10+10 which is 30 ones

2 tens = ones 5 tens = ones

Hint: 10 + 10 Hint: 10 + 10 + 10 + 10 + 10

6 tens = ones 3 tens = ones

Hint: 10 + 10 + 10 + 10 + 10 + 10 Hint: 10 + 10 + 10

8 tens = ones 4 tens = ones

Hint: 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 Hint: 10 + 10 + 10 + 10

9 tens = ones 7 tens = ones

Hint: 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 Hint: 10 + 10 + 10 + 10 + 10 + 10 + 10

1 tens = ones 10 tens = ones

Hint: 10 + 0 Hint: 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2

How many ones make up each set of tens?

3 tens = 30 ones 3 tens is the same as

10+10+10 which is 30 ones

2 tens = ones 5 tens = ones

6 tens = ones 3 tens = ones

8 tens = ones 4 tens = ones

9 tens = ones 7 tens = ones

1 tens = ones 10 tens = ones

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

How many ones make up each set of tens?

13 tens = 130 ones 13 tens is the same as

130 ones.

12 tens = ones 15 tens = ones

16 tens = ones 13 tens = ones

18 tens = ones 14 tens = ones

19 tens = ones 17 tens = ones

1 1 tens = ones 10 tens = ones

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color the box that shows the correct value of the underlined number.
tens ones tens ones tens ones

35 62 85
30 3 60 6 50 5
tens ones tens ones tens ones

27 55 49
20 2 50 5 90 9
tens ones tens ones tens ones

73 96 28
30 3 60 6 20 2
tens ones tens ones tens ones

66 24 57
60 6 40 4 70 7
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Color the box that shows the correct value of the underlined number.

35 62 85
30 3 60 6 50 5

27 55 49
20 2 50 5 90 9

73 96 28
30 3 60 6 20 2

66 24 57
60 6 40 4 70 7
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2

Write the value of the tens and ones inside the boxes.

35 62 85
30 5

27 55 49

73 96 28

66 24 57
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the whales from least to greatest based on their value.

45, 55, 40, 50, 44, 54

40 44 45 50 54 55
35, 55, 75, 25, 65, 45, 85

25 35
18, 28, 82, 81, 58, 89, 68

18 28
60, 50, 70, 30, 80, 10, 90

10
©2016 T a ndi Chu rc hill
30 Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the whales from least to greatest based on their value.

42, 22, 62, 26, 82, 28, 92

22 26
17, 70, 77, 57, 71, 37, 73

17 37
59, 50, 52, 57, 54, 60, 56

50 52
30, 33, 63, 36, 83, 38, 93

30
©2016 T a ndi Chu rc hill
33 Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the whales from least to greatest based on their value.

45, 55, 40, 50, 44, 54

40 44 45 50 54 55
35, 55, 75, 25, 65, 45, 85

25
18, 28, 82, 81, 58, 89, 68

18
60, 50, 70, 30, 80, 10, 90

10
©2016 T a ndi Chu rc hill Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the whales from least to greatest based on their value.

42, 22, 62, 26, 82, 28, 92

22
17, 70, 77, 57, 71, 37, 73

17
59, 50, 52, 57, 54, 60, 56

50
30, 33, 63, 36, 83, 38, 93

30
©2016 T a ndi Chu rc hill Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the whales from least to greatest based on their value.

45, 55, 40, 50, 44, 54

40 44 45 50 54 55
35, 55, 75, 25, 65, 45, 85

18, 28, 82, 81, 58, 89, 68

60, 50, 70, 30, 80, 10, 90

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the whales from least to greatest based on their value.

42, 22, 62, 26, 82, 28, 92

17, 70, 77, 57, 71, 37, 73

59, 50, 52, 57, 54, 60, 56

30, 33, 63, 36, 83, 38, 93

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the kittens from greatest to least based on their value.

65, 85, 20, 90, 55, 70

90 85 70 65 55 20
26, 96, 62, 16, 69, 61, 90

96 90
12, 21, 25, 18, 15, 19, 28

28 25
60, 80, 100, 50, 70, 40, 90

100
©2016 T a ndi Chu rc hill
90 Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the kittens from greatest to least based on their value.

40, 32, 23, 22, 30, 33, 20

40 33
55, 95, 80, 25, 90, 50, 75

95 90
10, 17, 12, 20, 15, 19, 21

21 20
60, 70, 17, 71, 76, 16, 67

76 71
©2016 T a ndi Chu rc hill Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the kittens from greatest to least based on their value.

65, 85, 20, 90, 55, 70

90 85 70 65 55 20
26, 96, 62, 16, 69, 61, 90

96
12, 21, 25, 18, 15, 19, 28

28
60, 80, 100, 50, 70, 40, 90

100
©2016 T a ndi Chu rc hill Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the kittens from greatest to least based on their value.

40, 32, 23, 22, 30, 33, 20

40
55, 95, 80, 25, 90, 50, 75

95
10, 17, 12, 20, 15, 19, 21

21
60, 70, 17, 71, 76, 16, 67

76
©2016 T a ndi Chu rc hill Bite-S ize T ea c hing
 Common Core: 1.NBT.B.2
Name Page 1 of 2

Order the kittens from greatest to least based on their value.

90 85 70 65 55 20

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Common Core: 1.NBT.B.2
Name Page 2 of 2

Order the kittens from greatest to least based on their value.

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

Name Common Core: 1.NBT.B.2

Match each 2-digit number to the correct base ten blocks.

35 15 19 28
26 32 40 13
Name Common Core: 1.NBT.B.2

Glue the value of the underlined digit next to the correct 2-digit number.

52 98
74 26
35 44
67 85
40 30 4 50
6 60 8 80
 read & write
2-digit
numbers in
standard,
expanded, and
word form.

©2016 Tandi Churchill Bite-Size Teaching

 Read & write
numerals and
represent a
number of
objects with a
written
numeral.
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write each number in standard form.

16 = 10 + 6 10 plus 6 is 16 in
standard form.

= 10 + 5
tens ones
= 10 + 2
tens ones
tens ones tens ones

= 10 + 6
tens ones
= 10 + 9
tens ones
tens ones tens ones

= 10 + 7
tens ones
= 10 + 4
tens ones
tens ones tens ones

= 10 + 0
tens ones
= 10 + 8
tens ones
tens ones tens ones

= 10 + 3
tens ones
= 10 + 1
tens ones
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write each number in standard form.

16 = 10 + 6 10 plus 6 is 16 in
standard form.

= 10 + 5 = 10 + 2
= 10 + 6 = 10 + 9
= 10 + 7 = 10 + 4
= 10 + 0 = 10 + 8
= 10 + 3 = 10 + 1
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Create ones to add to the tens. Then write in standard form.

16 = 10 + 6
10 plus 6 is 16 in
standard form.

= 10 + = 10 +
= 10 + = 10 +
= 10 + = 10 +
= 10 + = 10 +
= 10 + = 10 +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write each number in standard form.

42 = 40 + 2 40 plus 2 is 42 in
standard form.

= 30 + 1
tens ones
= 10 + 2
tens ones
tens ones tens ones

= 50 + 8
tens ones
= 70 + 5
tens ones
tens ones tens ones

= 40 + 3
tens ones
= 90 + 4
tens ones
tens ones tens ones

= 80 + 0
tens ones
= 60 + 6
tens ones
tens ones tens ones

= 20 + 9
tens ones
= 20 + 7
tens ones
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write each number in standard form.

42 = 40 + 2 40 plus 2 is 42 in
standard form.

= 30 + 1 = 10 + 2
= 50 + 8 = 70 + 5
= 40 + 3 = 90 + 4
= 80 + 0 = 60 + 6
= 20 + 9 = 20 + 7
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Create tens to add to the ones. Then write in standard form.

42 = 40 + 2 40 plus 2 is 42 in
standard form.

= +1 = +2
= +8 = +5
= +3 = +4
= +0 = +6
= +9 = +7
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1
Page 1 of 2

Write each number in standard & expanded form. Complete the place value chart.

Tens Ones
45 4 5
45 = 40 + 5
Tens Ones

= 60 + 2
Tens Ones

©2016 T a ndi Chu rc hill

= 20 + 9 Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 2 of 2

Write each number in standard & expanded form. Complete the place value chart.

Tens Ones

= 50 + 8
Tens Ones

= 30 + 6
Tens Ones

©2016 T a ndi Chu rc hill

= 70 + 0 Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 1 of 2

Write each number in standard & expanded form. Complete the place value chart.

Tens Ones
45 4 5
45 = 40 + 5
Tens Ones

= +
Tens Ones

©2016 T a ndi Chu rc hill

= + Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 2 of 2

Write each number in standard & expanded form. Complete the place value chart.

Tens Ones

= +
Tens Ones

= +
Tens Ones

©2016 T a ndi Chu rc hill

= + Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 1 of 2

Draw base ten blocks to show your own 2-digit numbers. Then fill out the chart.

Tens Ones
45 4 5
45 = 40 + 5
Tens Ones

= +
Tens Ones

©2016 T a ndi Chu rc hill

= + Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 2 of 2

Draw base ten blocks to show your own 2-digit numbers. Then fill out the chart.

Tens Ones

= +
Tens Ones

= +
Tens Ones

©2016 T a ndi Chu rc hill

= + Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1

Complete the expanded form of each 2-digit number.

17 = 10 + 7
17 is one ten
and 7 ones.

12 = 10 + 14 = 10 +
18 = 10 + 1 1 = 10 +
15 = 10 + 13 = 10 +
10 = 10 + 16 = 10 +
17 = 10 + 19 = 10 +
20 = 20 + 18 = 10 +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write the expanded form of each 2-digit number.

17 = 10 + 7
17 is one ten
and 7 ones.

12 = + 14 = +
18 = + 11 = +
15 = + 13 = +
10 = + 16 = +
17 = + 19 = +
20 = + 18 = +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Create 2-digit numbers then write in expanded form.

17 = 10 + 7 17 is one ten
and 7 ones.

= + = +
= + = +
= + = +
= + = +
= + = +
= + = +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Complete the expanded form of each 2-digit number.

63 = 60 + 3 63 is 60
and 3.

56 = 50 + 34 = 30 +
82 = 80 + 67 = 60 +
45 = 40 + 53 = 50 +
22 = 20 + 96 = 90 +
90 = 90 + 88 = 80 +
78 = 70 + 42 = 40 +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write the expanded form of each 2-digit number.

63 = 60 + 3 63 is 60
and 3.

56 = + 34 = +
82 = + 67 = +
45 = + 53 = +
22 = + 96 = +
90 = + 88 = +
78 = + 42 = +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Create 2-digit numbers then write in expanded form.

63 = 60 + 3 63 is 60
and 3.

= + = +
= + = +
= + = +
= + = +
= + = +
= + = +
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.A.1
Name

Write each 2-digit number in word form.

35 thirty-five
16 sixteen
28 twenty-eight
52 fifty-two
95 ninety-five
37 thirty-seven
64 sixty-four
89 eighty-nine
43 forty-three
76 seventy-six
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.A.1
Name

Write each 2-digit number in word form.

35 thirty-five
16
28
52
95
37
64
89
43
76
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.A.1
Name

Create your own 2-digit numbers then write in word form.

35 thirty-five

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.A.1

Match the expanded form to the standard form.

60 + 3 18

10 + 8 56

40 + 2 81

50 + 6 63

80 + 1 95

90 + 5 42
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Complete the expanded form then match to the standard.

60 + 18

10 + 56

40 + 81

50 + 63

80 + 95

90 + 42
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1

Write the expanded form of each standard, then match.

+ 18

+ 56

+ 81

+ 63

+ 95

+ 42
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.A.1
Page 1 of 2

Write each number in standard and word form.

58 Fifty-eight Sixty-three

Forty-nine Ninety

©2016 T a ndi Chu rc hill

Eighty-five Seventy-one Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 2 of 2

Write each number in standard and word form.

Thirty-six Fifty-one

Ninety-four Seventeen

©2016 T a ndi Chu rc hill

Sixty-two Forty-eight Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 1 of 2

Write each number in standard and word form.

58 Fifty-eight

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Name Common Core: 1.NBT.A.1
Page 2 of 2

Write each number in standard and word form.

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Name Common Core: 1.NBT.A.1
Page 1 of 2

Write the numbers in word form. Draw blocks to match.

58 Fifty-eight 63

49 90

85
©2016 T a ndi Chu rc hill
71 Bite-S ize T ea c hing
 Name Common Core: 1.NBT.A.1
Page 2 of 2

Write the numbers in word form. Draw blocks to match.

36 51

94 17

62
©2016 T a ndi Chu rc hill
48 Bite-S ize T ea c hing
 Common Core: 1.NBT.A.1
Name

Write each 2-digit number in expanded & word form.

Standard Expanded Word

42 40 + 2 Forty-two
68 Sixty-eight
54 Fifty-four
76 Seventy-six
39 Thirty-nine
21 Twenty-one
95 Ninety-five
82 Eighty-two
48 Forty-eight
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.A.1
Name

Write each 2-digit number in expanded & word form.

Standard Expanded Word

42 40 + 2 Forty-two
68
54
76
39
21
95
82
47
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.A.1
Name

Create 2-digit numbers in standard, expanded, and word form.

Standard Expanded Word

42 40 + 2 Forty-two

©2016 Tandi Churchill Bite-Size Teaching

Name Common Core: 1.NBT.A.1

Glue the expanded form of each number next to the correct standard form.

53 76
34 22
60 85
42 97
70+6 50+3 80+5 60+0
20+2 30+4 40+2 90+7
Name Common Core: 1.NBT.A.1

Glue the expanded form of each number next to the correct standard form.

12 18
17 14
15 19
13 16
10+8 10+7 10+4 10+9
10+5 10+6 10+3 10+2
 Use <, >, =
symbols to
compare two
2-digit
numbers.

©2016 Tandi Churchill Bite-Size Teaching

 Compare two 2-
digit numbers
based on
meanings of the
tens and ones
digits.

©2016 Tandi Churchil l Bite-Size Teaching

 Common Core: 1.NBT.B.3
Name

Compare each set of 2-digit numbers with <, >, or =.

26 28 54 64
<
80 70 32 36

95 92 44 56

20 30 29 73

64 46 82 88

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Common Core: 1.NBT.B.3
Name

Compare each set of 2-digit numbers with <, >, or =.

54 64
<
26 28

80 70 32 36

95 92 44 56

20 30 29 73

64 46 82 88

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Common Core: 1.NBT.B.3
Name

Create 2-digit numbers, then compare each set with <, >, or =.

<
26 28

©2016 T a ndi Chu rc hill Bite-S ize T ea c hing

 Name Common Core: 1.NBT.B.3

Compare the 2-digit numbers. Circle T for True and F for False.

T
45 55 F

T T
45 65 F 62 62 F
T T
24 42 F 91 19 F
T T
78 78 F 50 50 F
T T
39 49 F 22 23 F
T T
42 36 F 95 85 F
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Create another 2-digit number to make each comparison true.

45 55
45 62
24 91
78 50
39 22
42 95
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Create sets of 2-digit numbers to make each comparison true.

45 55

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3

Stamp or circle the greater number.

62 or 26 50 or 55 92 or 38
34 or 43 65 or 63 47 or 74
99 or 98 27 or 72 14 or 41
49 or 60 33 or 34 88 or 68
52 or 25 24 or 32 97 or 96
31 or 13 66 or 46 44 or 24
89 or 98 77 or 76 19 or 91
72 or 27 80 or 90 23 or 22
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Create another 2-digit number inside each box. Stamp or circle the greater number.

62 or 26 50 or 92 or
34 or 65 or 47 or
99 or 27 or 14 or
49 or 33 or 88 or
52 or 24 or 97 or
31 or 66 or 44 or
89 or 77 or 19 or
72 or 80 or 23 or
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Create two 2-digit numbers, then stamp or circle the greater number.

62 or 26 or or

or or or

or or or

or or or

or or or

or or or

or or or

or or or
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.3
Name Page 1 of 2

Compare each set of 2-digit numbers with <, >, or =.

4 5 < 5 4

2 3 2 3

5 1 6 1

4 4 3 4

©2016 Tandi Churchill

5 0 5 3 Bite-Size Teaching
 Common Core: 1.NBT.B.3
Name Page 2 of 2

Compare each set of 2-digit numbers with <, >, or =.

3 5 3 5

2 1 1 2

5 5 5 6

4 0 3 0

©2016 Tandi Churchill

6 3 3 3 Bite-Size Teaching
 Common Core: 1.NBT.B.3
Name Page 1 of 2

Write each 2-digit number, then compare with <, >, or =.

4 5 < 5 4

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.3
Name Page 2 of 2

Write each 2-digit number, then compare with <, >, or =.

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.3
Name Page 1 of 2

Create 2-digit number dice then compare with <, >, or =.

4 5 < 5 4

©2016 Tandi Churchill Bite-Size Teaching

 Common Core: 1.NBT.B.3
Name Page 2 of 2

Create 2-digit number dice then compare with <, >, or =.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 1 of 2

Write each 2-digit number, then compare with <, >, or =.

<
32 42
10 20 30 40 1 10 20 30 40 1 2

10 20 30 40 50 1 2 3 10 20 1 2 3 4 5 6 7 8

10 20 30 40 50 60 10 20 30 40 50 60

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 2 of 2

Write each 2-digit number, then compare with <, >, or =.

10 20 30 1 2 3 4 10 20 30 40 1 2 3 4

10 20 1 2 10 20 1

10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8

10 20 30 1 2 3 10 20 30 1 2 3

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 1 of 2

Write each 2-digit number, then compare with <, >, or =.

<
32 42

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 2 of 2

Write each 2-digit number, then compare with <, >, or =.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 1 of 2

Create 2-digit numbers, draw tens & ones, then compare with <, >, or =.

<
32 42

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3
Page 2 of 2

Create 2-digit numbers, draw tens & ones, then compare with <, >, or =.

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.3

Compare the numbers with <,>, or =. Look at the arrows to help you.

36 < 56 24 26
68 86 73 53
92 92 44 46
57 37 82 82
35 34 60 30
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Compare the 2-digit numbers with <,>, or =.

36 < 56 24 26
68 86 73 53
92 92 44 46
57 37 82 82
35 34 60 30
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.3

Create pairs of 2-digit numbers. Then compare with <,>, or =.

36 < 56

©2016 Tandi Churchill Bite-Size Teaching

Name Common Core: 1.NBT.B.3

Compare the 2-digit numbers by cutting & gluing the correct symbol.

30 30 90 80
20 40 60 50
70 60 30 40
20 20 70 70
Name Common Core: 1.NBT.B.3

Compare the 2-digit numbers by cutting & gluing the correct symbol.

45 65 80 60
24 24 36 56
43 44 50 50
72 73 92 29
 show groups
or “bundles”
of tens and
0 ones.

©2016 Tandi Churchill Bite-Size Teaching

 Ten can be
thought of as a
bundle of ten
ones – called a
“ten.”

©2016 Tandi Churchil l Bite-Size Teaching

 The numbers 10, 20,
30, 40, 50, 60, 70, 80,
and 90 refer to one,
two, three, four,
five, six, seven, eight,
or nine tens (and
0 ones).
©2016 Tandi Churchil l Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C

Show the tens plus 0 ones.

60 = 60 + 0
60 is 6 tens
plus 0 ones

40 = + 0 80 = + 0
70 = + 0 50 = + 0
10 = + 0 90 = + 0
60 = + 0 20 = + 0
30 = + 0 100 = + 0
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C

Show the tens plus 0 ones.

60 = 60 + 0
60 is 6 tens
plus 0 ones

40 = + 80 = +
70 = + 50 = +
10 = + 90 = +
60 = + 20 = +
30 = + 100 = +
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C

Choose multiples of 10, then break them out into tens and ones.

60 is 6 tens
60 = 60 + 0 plus 0 ones

= + = +
= + = +
= + = +
= + = +
= + = +
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 1 of 2

Write each number in standard form.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 =
tens ones tens ones

20 + 0 =
tens ones tens ones

70 + 0 =
tens ones tens ones

80 + 0 =
tens ones tens ones

30 + 0 =
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 2 of 2

Write each number in standard form.

70 + 0 =
tens ones tens ones

90 + 0 =
tens ones tens ones

50 + 0 =
tens ones tens ones

10 + 0 =
tens ones tens ones

40 + 0 =
tens ones tens ones

30 + 0 =
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 1 of 2

Write each number in standard form.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 =
tens ones

20 + 0 =
tens ones

70 + 0 =
tens ones

80 + 0 =
tens ones

30 + 0 =
tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 2 of 2

Write each number in standard form.

70 + 0 =
tens ones

90 + 0 =
tens ones

50 + 0 =
tens ones

10 + 0 =
tens ones

40 + 0 =
tens ones

30 + 0 =
tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 1 of 2

Write each number in standard form.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 =
20 + 0 =
70 + 0 =
80 + 0 =
30 + 0 =
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name Page 2 of 2

Write each number in standard form.

70 + 0 =
90 + 0 =
50 + 0 =
10 + 0 =
40 + 0 =
30 + 0 =
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Add the tens and ones together.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 = 90 + 0 =
tens ones tens ones

20 + 0 = 50 + 0 =
tens ones tens ones

70 + 0 = 10 + 0 =
tens ones tens ones

80 + 0 = 40 + 0 =
tens ones tens ones

30 + 0 = 20 + 0 =
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Add the tens and ones together.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 = 90 + 0 =
tens ones tens ones

20 + 0 = 50 + 0 =
tens ones tens ones

70 + 0 = 10 + 0 =
tens ones tens ones

80 + 0 = 40 + 0 =
tens ones tens ones

30 + 0 = 20 + 0 =
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Add the tens and ones together.

50 + 0 = 50 50 plus 0 is 5
tens and 0 ones.

60 + 0 = 90 + 0 =
20 + 0 = 50 + 0 =
70 + 0 = 10 + 0 =
80 + 0 = 40 + 0 =
30 + 0 = 20 + 0 =
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Write each number in standard form.

3 tens 0 ones 30 3 tens and 0

ones is 30.

6 tens 0 ones 9 tens 0 ones

10 + 10 + 10 + 10 + 10 + 10 + 0 = 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 0 =
tens ones tens ones

2 tens 0 ones 5 tens 0 ones

10 + 10 + 0 = 10 + 10 + 10 + 10 + 10 + 0 =
tens ones tens ones

7 tens 0 ones 1 ten 0 ones

10 + 10 + 10 + 10 + 10 + 10 + 10 + 0 = 10 + 0 =
tens ones tens ones

8 tens 0 ones 4 tens 0 ones

10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 0 = 10 + 10 + 10 + 10 + 0 =
tens ones tens ones

3 tens 0 ones 10 tens 0 ones

10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 0 =
tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Write each number in standard form.

3 tens 0 ones 30 3 tens and 0

ones is 30.

6 tens 0 ones 9 tens 0 ones

tens ones tens ones

2 tens 0 ones 5 tens 0 ones

tens ones tens ones

7 tens 0 ones 1 ten 0 ones

tens ones tens ones

8 tens 0 ones 4 tens 0 ones

tens ones tens ones

3 tens 0 ones 10 tens 0 ones

tens ones tens ones
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.B.2.C
Name

Write each number in standard form.

3 tens 0 ones 30 3 tens and 0

ones is 30.

6 tens 0 ones 9 tens 0 ones

2 tens 0 ones 5 tens 0 ones

7 tens 0 ones 1 ten 0 ones

8 tens 0 ones 4 tens 0 ones

3 tens 0 ones 10 tens 0 ones

©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C
Page 1 of 2

Color the correct number of bundles.

60
10 10 10 10 10 10 10 10 10 10

20
10 10 10 10 10 10 10 10 10 10

50
10 10 10 10 10 10 10 10 10 10

80
©2016 Tandi Churchill Bite-Size Teaching
 Page 2 of 2
Name Common Core: 1.NBT.B.2.C

10 10 10 10 10 10 10 10 10 10

30
10 10 10 10 10 10 10 10 10 10

90
10 10 10 10 10 10 10 10 10 10

40
10 10 10 10 10 10 10 10 10 10

60
10 10 10 10 10 10 10 10 10 10

70
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C
Page 1 of 2

Color the correct number of bundles.

60

20

50

80
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C
Page 2 of 2

30

90

40

60

70
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.B.2.C
Page 1 of 2

Color bundles of 10 then write the number inside each box.

60

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.B.2.C
Page 2 of 2

©2016 Tandi Churchill Bite-Size Teaching

Name Common Core: 1.NBT.B.2.C

Match each 2-digit number to the correct base ten blocks.

70 10 30 40
50 80 20 60
Name Common Core: 1.NBT.B.2.C

Glue the expanded form next to the correct group of ten.

40 50
90 80
30 20
70 60
50+0 70+0 90+0 80+0
30+0 20+0 60+0 40+0
 find 10 more
or ten less
than a
2-digit
number.

©2016 Tandi Churchill Bite-Size Teaching

 Given a 2-digit
number mentally
find 10 more or
ten less than the
number without
having to
count.
©2016 Tandi Churchil l Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Add ten to each 2-digit number.

32 + 10 = 42 When you add ten,

only the tens change.

35 + 10 = 64 + 10 =
Hint: 30 + 10 + 5 = ? Hint: 60 + 10 + 4 = ?

46 + 10 = 73 + 10 =
Hint: 40 + 10 + 6 = ? Hint: 70 + 10 + 3 = ?

28 + 10 = 19 + 10 =
Hint: 20 + 10 + 8 = ? Hint: 10 + 10 + 9 = ?

13 + 10 = 45 + 10 =
Hint: 10 + 10 + 3 = ? Hint: 40 + 10 + 5 = ?

55 + 10 = 23 + 10 =
Hint: 50 + 10 + 5 = ? Hint: 20 + 10 + 3 = ?
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Add ten to each 2-digit number.

32 + 10 = 42 When you add ten,

only the tens change.

35 + 10 = 64 + 10 =
46 + 10 = 73 + 10 =
28 + 10 = 19 + 10 =
13 + 10 = 45 + 10 =
55 + 10 = 23 + 10 =
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Create 2-digit numbers then add ten.

32 + 10 = 42 When you add ten,

only the tens change.

+ 10 = + 10 =
+ 10 = + 10 =
+ 10 = + 10 =
+ 10 = + 10 =
+ 10 = + 10 =
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Subtract ten from each 2-digit number.

64 - 10 = 54 When you subtract ten,

only the tens change.

52 - 10 = 39 - 10 =
Hint: 50 - 10 + 2 = ? Hint: 30 - 10 + 9 = ?

74 - 10 = 85 - 10 =
Hint: 70 - 10 + 4 = ? Hint: 80 - 10 + 5 = ?

36 - 10 = 68 - 10 =
Hint: 30 - 10 + 6 = ? Hint: 60 - 10 + 8 = ?

48 - 10 = 72 - 10 =
Hint: 40 - 10 + 8 = ? Hint: 70 - 10 + 2 = ?

22 - 10 = 54 - 10 =
Hint: 20 - 10 + 2 = ? Hint: 50 - 10 + 4 = ?
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Subtract ten from each 2-digit number.

64 - 10 = 54 When you subtract ten,

only the tens change.

52 - 10 = 39 - 10 =
74 - 10 = 85 - 10 =
36 - 10 = 68 - 10 =
48 - 10 = 72 - 10 =
22 - 10 = 54 - 10 =
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Create 2-digit numbers then subtract ten.

64 - 10 = 54 When you subtract ten,

only the tens change.

- 10 = - 10 =
- 10 = - 10 =
- 10 = - 10 =
- 10 = - 10 =
- 10 = - 10 =
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Count on 10 more than each previous 2-digit number using mental math.

25 , 35 , 45 , 55 , 65 , 75 , 85
32 , 42 , 52 , , , ,
11 , 21 , 31 , , , ,
48 , 58 , 68 , , , ,
20 , 30 , 40 , , , ,
14 , 24 , 34 , , , ,
36 , 46 , 56 , , , ,
49 , 59 , 69 , , , ,
22 , 32 , 42 , , , ,
17 , 27 , 37 , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Count on 10 more than each previous 2-digit number using mental math.

25 , 35 , 45 , 55 , 65 , 75 , 85
32 , , , , , ,
11 , , , , , ,
48 , , , , , ,
20 , , , , , ,
14 , , , , , ,
36 , , , , , ,
49 , , , , , ,
22 , , , , , ,
17 , , , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Create 2-digit numbers then count on 10 more using mental math.

25 , 35 , 45 , 55 , 65 , 75 , 85
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Count back 10 less than each previous 2-digit number using mental math.

92 , 82 , 72 , 62 , 52 , 42 , 32
86 , 76 , 66 , , , ,
90 , 80 , 70 , , , ,
75 , 65 , 55 , , , ,
83 , 73 , 63 , , , ,
99 , 89 , 79 , , , ,
74 , 64 , 54 , , , ,
87 , 77 , 67 , , , ,
98 , 88 , 78 , , , ,
72 , 62 , 52 , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Count back 10 less than each previous 2-digit number using mental math.

92 , 82 , 72 , 62 , 52 , 42 , 32
86 , , , , , ,
90 , , , , , ,
75 , , , , , ,
83 , , , , , ,
99 , , , , , ,
74 , , , , , ,
87 , , , , , ,
98 , , , , , ,
72 , , , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Create 2-digit numbers then count back 10 less using mental math.

92 , 82 , 72 , 62 , 52 , 42 , 32
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
, , , , , ,
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Add or subtract ten to complete each chart.

- + - +
10 10 10 10
24 34 44 15 25
46 56 80 90
65 75 36 46
72 82 53 63
56 66 49 59
17 27 21 31
20 30 74 84
58 68 89 99
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Add or subtract ten to complete each chart.

- + - +
10 10 10 10
24 34 44 15 25
56 80
75 36
82 53
66 49
27 21
30 74
68 89
©2016 Tandi Churchill Bite-Size Teaching
 Common Core: 1.NBT.C.5
Name

Create your own 2-digit numbers. Then add and subtract ten.

- + - +
10 10 10 10
24 34 44

©2016 Tandi Churchill Bite-Size Teaching

 Name Common Core: 1.NBT.C.5

Glue the addition sentence next to the correct answer.

73 42
98 29
84 37
66 55
32 + 10 45 + 10 63 + 10 27 + 10
88 + 10 56 + 10 74 + 10 19 + 10
©2016 Tandi Churchill Bite-Size Teaching
 Name Common Core: 1.NBT.C.5

Glue the subtraction sentence next to the correct answer.

52 15
35 41
84 63
29 76
25 - 10 73 - 10 86 - 10 94 - 10
62 - 10 45 - 10 39 - 10 51 - 10
©2016 Tandi Churchill Bite-Size Teaching
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