Grade 3

Everyday Math:

Unit
Math Tools, Time,
and Multiplication
EDM Version 4

Study
Guide
 Thank you!
Catherine Wiist @ Abc123is4me
http://www.teacherspayteachers.com/Store/Abc123is4me
(All new products are discounted for the first 48 hours!
Follow my page to see when new products are posted!)
https://www.facebook.com/Abc123isforme
(Follow me here for Flash Freebies!!!)
http://abc123is4me.blogspot.com/
(Follow me here to see how I use my products in my classroom!)

Credits:
Name: ___________________ Test Date: ___ - ___ - ___

Grade 3
Everyday Math: Unit
Math Tools, Time, and Multiplication.

Study Guide
Unit Vocabulary:
array, bar graph, close-but-easier numbers, column, data, difference, division,
division symbol, elapsed time, equal grouping, equal groups, equal shares, equal
sharing, essay, estimate, fact family, factors, Fact Triangle, gram, kilogram, length
of day, mass, masses, mathematical model, multiplication, multiplication symbol,
number grid, open number line, pan balance, precise, product, Quick Looks, round,
row, strategy, weight, zero.
Lesson 1.1:
How do you add and subtract multi-digit numbers?

Use the number grid.

81 82 83 84 85 86 87 88 89 90

91 92 93 94 95 96 97 98 99 100

101 102 103 104 105 106 107 108 109 110

111 112 113 114 115 116 117 118 119 120

a. The difference between 84 and 116 is _______.

b. The difference between 98 and 111 is _______.
c. Explain how you used the number grid to solve problem 1b.

_________________________________________________________________________

_________________________________________________________________________

________________________________________________________________________ Pg. 1
Lesson 1.2:
How do we use the Student Reference Book and play Number-Grid Difference?

Becky and Aaron played Number-Grid Difference.

The object of the game is to have the lower sum of 5 scores.
Becky picked 2 and 5 and made the number 25.
Aaron picked 7 and 5. What number should Aaron make?
Explain your answer. _______________________________________________________________
.f
___________________________________________________________________________________
.
___________________________________________________________________________________

Lesson 1.3:
What are the tools we use in math, and how are they used to solve math problems?
Write the time shown on each clock.
You may use your toolkit clocks to help you.
a. b.

__________ __________
Pg. 2
Lesson 1.4:
How do you round numbers to the nearest 10 or 100?
Round each number to the nearest 10. You may use open number lines to help.
a. 79 rounded to the nearest 10 is _______.

b. 53 rounded to the nearest 10 is _______.

Round each number to the nearest 100. You may use open number lines to help.

a. 763 rounded to the nearest 100 is _______.

b. 669 rounded to the nearest 100 is _______.

Pg. 3
Lesson 1.5:
How do you tell time to the nearest minute and calculate elapsed time?

Devon starts baseball practice at 4:10 P.M. and finishes at 3:50 P.M. He drew an open
number line and sued it to find the length of his practice.

+5 +15 +15 +5

4:10 4:15 4:30 4:45 4:50

5 + 15 + 15 + 5 = 40

Explain Devon’s work. _____________________________________________________________

___________________________________________________________________________________
___________________________________________________________________________________
.
___________________________________________________________________________________

How long was Devon’s baseball practice? _______ minutes long

Pg. 4
Lesson 1.6:
What strategies do you use to calculate elapsed time?

Solve. You may use your toolkit clock or an open number line to help you.
Show your work.
.

Lenna starts art camp at 10:45 A.M.

He finishes at 2:15 P.M.
How many hours and minutes does Lenna spend at camp?

Lenna spends _____ hours and _____ minutes at camp.

Pg. 5
Lesson 1.7:
How do you represent and interpret data on a scaled bar graph?

a. Use the tally chart to complete the bar graph.

10

Favorite Number 8

Number of Votes
Flavors of votes
Vanilla 6
llll  l  
Chocolate llll  lll   4

Strawberry llll   2

Pistachio .
lll   0
Vanilla Chocolate Strawberry Pistachio

Favorite Flavors
Use the data in the bar graph to answer the questions below.

b. How many votes were there in all? _______

c. How many fewer liked pistachio than chocolate? _______

d. Write at least two things you know from the graph.

Pg. 6
Lesson 1.8:
What strategies do you use to solve multiplication number stories?

For the number story, draw a sketch and write the answer.
Then write a number model to fit the story.

Blake makes 7 rows of chairs.

In each row he puts 5 chairs.
How many chairs does Blake use in all?

He uses _______ chairs.

Number model: _____________________________________________________________

Lesson 1.9:
What strategies do you use to solve division number stories?

Draw a picture to help you solve the number story. Record your answers.

Abby has 24 apples. She puts 6 apples in each basket.

How many baskets does she use?

_______ baskets Pg. 7

Lesson 1.10:
How do you improve your fluency with multiplication facts?

Solve each problem.

a. 2 x 6 = _______ b. 2 x 4 = _______
c. 5 x 4 = _______ d. 3 x 5 = _______
e. 10 x 5 = _______ f. 4 x 10 = _______
g. How did you solve 3 x 5?

________________________________________________________________________________

________________________________________________________________________________

Lesson 1.11:
What strategies do you use to calculate elapsed time?

Find the elapsed time. Use the open number line to help.

The class started recess at 2:25 P.M. They finished at 2:40 P.M. How long was recess?

Recess was _______ minutes long.

Pg. 8
Lesson 1.12:
.Exploration A: How do you compare the masses of objects?
Fill in the blanks with vocabulary words from the lesson.
.
1. ______________ is the measure of the amount of matter in an object is.
2. ______________ is the measure of how heavy something is.

3. A tool used to compare & measure the masses of objects is a ______ ______________.

Exploration B: How do you divide multiple wholes into equal shares?

Solve the problem below. You may use the pancakes sketches to help you.
.
You roll a 4 for number of pancakes.
You roll a 3 for number of people sharing the pancakes.
How many pancakes will each person get?

Answer: ______________________________
(unit)

Exploration C: How do you create equal groups?

You roll a 5 for number of nests.
You roll a 3 for how many eggs in each nest.
Draw a sketch of the nests and eggs.
Write a number model to show how many eggs in all.

Number model: _________________________ Pg. 9

Lesson 1.13:
How do you estimate and measure the masses of objects?

Kelly used a pan balance and masses to measure the mass of a bottle of glue. She
put the bottle of glue in one pan and two 50-gram masses in the other pan. Then
she added one 10-gram mass and three 1-gram masses to balance the pans. What
is the mass of the glue bottle?

50 g 50 g

10 g
1g 1g 1g

Answer: _______ grams

How did you figure out your answer? __________________________________________________

_______________________________________________________________________________________

Pg. 10
Answer
Key
 ANSWER KEY
Name: ___________________ Test Date: ___ - ___ - ___

Grade 3
Everyday Math: Unit
Math Tools, Time, and Multiplication.

Study Guide
Unit Vocabulary:
array, bar graph, close-but-easier numbers, column, data, difference, division,
division symbol, elapsed time, equal grouping, equal groups, equal shares, equal
sharing, essay, estimate, fact family, factors, Fact Triangle, gram, kilogram, length
of day, mass, masses, mathematical model, multiplication, multiplication symbol,
number grid, open number line, pan balance, precise, product, Quick Looks, round,
row, strategy, weight, zero.
Lesson 1.1:
How do you add and subtract multi-digit numbers?

Use the number grid.

81 82 83 84 85 86 87 88 89 90

91 92 93 94 95 96 97 98 99 100

101 102 103 104 105 106 107 108 109 110

111 112 113 114 115 116 117 118 119 120

33
a. The difference between 84 and 117 is _______.
26
b. The difference between 88 and 114 is _______.
c. Explain how you used the number grid to solve problem 1b.

Sample Answer: I counted by 1s from 88 to 94 and got 6. Then

_________________________________________________________________________

I counted by 10s from 94 to 114 and got 20. So the difference

_________________________________________________________________________

Is 26.
________________________________________________________________________ Pg. 1
Lesson 1.2:
How do we use the Student Reference Book and play Number-Grid Difference?

Becky and Aaron played Number-Grid Difference.

The object of the game is to have the lower sum of 5 scores.
Becky picked 2 and 5 and made the number 25.
Aaron picked 7 and 5. What number should Aaron make?
Sample Answer: He should make 57 because the
Explain your answer. _______________________________________________________________
.f
difference between 25 and 57 is less than the difference between
___________________________________________________________________________________
.
25 and 75.
___________________________________________________________________________________

Lesson 1.3:
What are the tools we use in math, and how are they used to solve math problems?
Write the time shown on each clock.
You may use your toolkit clocks to help you.
a. b.

4:55
__________ 3:35
__________
Pg. 2
Lesson 1.4:
How do you round numbers to the nearest 10 or 100?
Round each number to the nearest 10. You may use open number lines to help.
80
a. 79 rounded to the nearest 10 is _______.

70 75 80

50
b. 53 rounded to the nearest 10 is _______.

50 55 60

Round each number to the nearest 100. You may use open number lines to help.

800
a. 763 rounded to the nearest 100 is _______.

700 750 800

700
b. 669 rounded to the nearest 100 is _______.

600 650 700

Pg. 3
Lesson 1.5:
How do you tell time to the nearest minute and calculate elapsed time?

Devon starts baseball practice at 4:10 P.M. and finishes at 3:50 P.M. He drew an open
number line and sued it to find the length of his practice.

+5 +15 +15 +5

4:10 4:15 4:30 4:45 4:50

5 + 15 + 15 + 5 = 40

Devon counted up 5 minutes from 4:10 to 4:15. , 15

Explain Devon’s work. _____________________________________________________________
minutes from 4:15 to 4:30, 15 minutes from 4:30-4:45, and 5 minutes
___________________________________________________________________________________
from 4:45 to 4:50. He added up the minutes and got 40.
___________________________________________________________________________________
.
___________________________________________________________________________________

40 minutes long
How long was Devon’s baseball practice? _______

Pg. 4
Lesson 1.6:
What strategies do you use to calculate elapsed time?

Solve. You may use your toolkit clock or an open number line to help you.
Show your work.
.

Lenna starts art camp at 10:45 A.M.

He finishes at 2:15 P.M.
How many hours and minutes does Lenna spend at camp?

3 hours and _____

Lenna spends _____ 30 minutes at camp.

Pg. 5
Lesson 1.7:
How do you represent and interpret data on a scaled bar graph?

a. Use the tally chart to complete the bar graph. Total Votes
10

Favorite Number 8

Number of Votes
Flavors of votes
Vanilla 6
llll  l  
Chocolate llll  lll   4

Strawberry llll   2

Pistachio .
lll   0
Vanilla Chocolate Strawberry Pistachio

Favorite Flavors
Use the data in the bar graph to answer the questions below.

22
b. How many votes were there in all? _______

5
c. How many fewer liked pistachio than chocolate? _______

d. Write at least two things you know from the graph.

Sample Answers:
* There were six votes for vanilla.
* Most of the votes were for chocolate.
* There was one more vote for strawberry than there was for pistachio.
Pg. 6
Lesson 1.8:
What strategies do you use to solve multiplication number stories?

For the number story, draw a sketch and write the answer.
Then write a number model to fit the story.

Blake makes 7 rows of chairs.

In each row he puts 5 chairs.
How many chairs does Blake use in all?

35 chairs.
He uses _______
5 x 7= 35 OR 7 x 5= 35 OR 5+ 5+ 5+ 5+ 5+ 5+ 5= 35
Number model: _____________________________________________________________

Lesson 1.9:
What strategies do you use to solve division number stories?

Draw a picture to help you solve the number story. Record your answers.

Abby has 24 apples. She puts 6 apples in each basket.

How many baskets does she use?

4 baskets
_______ Pg. 7
Lesson 1.10:
How do you improve your fluency with multiplication facts?

Solve each problem.

12
a. 2 x 6 = _______ 8
b. 2 x 4 = _______
20
c. 5 x 4 = _______ 15
d. 3 x 5 = _______
50
e. 10 x 5 = _______ 40
f. 4 x 10 = _______
g. How did you solve 3 x 5?

Sample answers: I skip counted by 5s three times OR I added 5

________________________________________________________________________________

three times.
________________________________________________________________________________

Lesson 1.11:
What strategies do you use to calculate elapsed time?

Find the elapsed time. Use the open number line to help.

The class started recess at 2:25 P.M. They finished at 2:40 P.M. How long was recess?

15 minutes long.
Recess was _______

Pg. 8
Lesson 1.12:
.Exploration A: How do you compare the masses of objects?
Fill in the blanks with vocabulary words from the lesson.
.
Mass
1. ______________ is the measure of the amount of matter in an object is.
Weight
2. ______________ is the measure of how heavy something is.

pan ______________.
3. A tool used to compare & measure the masses of objects is a ______ balance

Exploration B: How do you divide multiple wholes into equal shares?

Solve the problem below. You may use the pancakes sketches to help you.
.
You roll a 4 for number of pancakes.
You roll a 3 for number of people sharing the pancakes.
How many pancakes will each person get?

1 and 1-third pancake

Answer: ______________________________
(unit)

Exploration C: How do you create equal groups?

You roll a 5 for number of nests.
You roll a 3 for how many eggs in each nest.
Draw a sketch of the nests and eggs.
Write a number model to show how many eggs in all.

5 x 3 = 15
Number model: _________________________ Pg. 9
Lesson 1.13:
How do you estimate and measure the masses of objects?

Kelly used a pan balance and masses to measure the mass of a bottle of glue. She
put the bottle of glue in one pan and two 50-gram masses in the other pan. Then
she added one 10-gram mass and three 1-gram masses to balance the pans. What
is the mass of the glue bottle?

50 g 50 g

10 g
1g 1g 1g

113 grams
Answer: _______

I added 50 + 50 + 10 + 3 and got 113.

How did you figure out your answer? __________________________________________________

_______________________________________________________________________________________

Pg. 10