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Worksheets 1

The document contains exercises using bar models to help students understand related facts in addition and subtraction. It includes various calculations that need to be completed based on the visual representation of numbers. The exercises are designed for educational purposes, aimed at enhancing mathematical skills.

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auroy32140
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
11 views11 pages

Worksheets 1

The document contains exercises using bar models to help students understand related facts in addition and subtraction. It includes various calculations that need to be completed based on the visual representation of numbers. The exercises are designed for educational purposes, aimed at enhancing mathematical skills.

Uploaded by

auroy32140
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 11

Related facts – Bar models

1 Colour the calculations that match the bar model. Then complete the sentences.

8 5
6 2 4 1

8+6=2 8–2=6 4+1=5 5–1=4

6+2=8 2–6=8 5+4=1 4–1=5

8+2=6 8–6=2 5+1=4 1–4=5

2+6=8 6–2=8 1+4=5 5–4=1

9 6
7 2 2 4

_______ + _______ = 9 _______ + _______ = 6

_______ + _______ = 9 _______ + _______ = 6

9 - _______ = _______ 6 - _______ = _______

9 - _______ = _______ 6 - _______ = _______

7 10
4 3 2 8

_______ + _______ = 7 _______ + _______ = 10

_______ + _______ = 7 _______ + _______ = 10

7 - _______ = _______ 10 - _______ = _______

7 - _______ = _______ 10 - _______ = _______


© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

8 7
5 ? ? 2

_______ + _______ = 8 _______ + 2 = _______

_______ + _______ = 8 2 + _______ = _______

8 - _______ = _______ _______ - _______ = 2

8 - _______ = _______ _______ - 2 = _______

? 10
1 5 1 ?

1 + _______ = _______ _______ + _______ = 10

_______ + 1 = _______ _______ + _______ = 10

_______ - 1 = _______ 10 - _______ = _______

_______ - _______ = 1 10 - _______ = _______

9 ?
? 3 4 5

_______ + _______ = 9 _______ + 5 = _______

_______ + _______ = 9 5 + _______ = _______

9 - _______ = _______ _______ - _______ = 5

9 - _______ = _______ _______ - 5 = _______


© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

18 15
10 8 9 6

_______ + _______ = 18 _______ + _______ = 15

_______ + _______ = 18 _______ + _______ = 15

18 - _______ = _______ 15 - _______ = _______

18 - _______ = _______ 15 - _______ = _______

14 12
6 8 4 ?

_______ + _______ = 14 4 + _______ = _______

_______ + _______ = 14 _______ + 4 = _______

14 - _______ = _______ _______ - 4 = _______

14 - _______ = _______ _______ - _______ = 4

13 ?
? 9 11 6

_______ + _______ = 13 _______ + 6 = _______

_______ + _______ = 13 6 + _______ = _______

13 - _______ = _______ _______ - _______ = 6

13 - _______ = _______ _______ - 6 = _______


© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

19 15
9 ? ? 7

_______ + _______ = _______ _______ + _______ = _______

_______ + _______ = _______ _______ + _______ = _______

_______ - _______ = _______ _______ - _______ = _______

_______ - _______ = _______ _______ - _______ = _______

? 13
8 5 9 ?

_______ + _______ = _______ _______ + _______ = _______

_______ + _______ = _______ _______ + _______ = _______

_______ - _______ = _______ _______ - _______ = _______

_______ - _______ = _______ _______ - _______ = _______

14 ?
? 6 9 8

_______ + _______ = _______ _______ + _______ = _______

_______ + _______ = _______ _______ + _______ = _______

_______ - _______ = _______ _______ - _______ = _______

_______ - _______ = _______ _______ - _______ = _______


© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

18 15
10 ? ? 8

10 + _______ = _______ _______ + _______ = 15

_______ + 10 = _______ _______ + _______ = 15

_______ - 10 = _______ 15 - _______ = _______

_______ - _______ = 10 15 - _______ = _______

? 16
5 7 7 ?

_______ + 7 = _______ _______ + _______ = _______

7 + _______ = _______ _______ + _______ = _______

_______ - _______ = 7 _______ - _______ = _______

_______ - 7 = _______ _______ - _______ = _______

17 ?
? 9 8 5

_______ + _______ = _______ _______ + _______ = _______

_______ + _______ = _______ _______ + _______ = _______

_______ - _______ = _______ _______ - _______ = _______

_______ - _______ = _______ _______ - _______ = _______


© Primary Stars Education
Answers

To avoid wasting paper & ink,


please do not print this page.

© Primary Stars Education


Related facts – Bar models
1 Colour the calculations that match the bar model. Then complete the sentences.

8 5
6 2 4 1

8+6=2 8–2=6 4+1=5 5–1=4

6+2=8 2–6=8 5+4=1 4–1=5

8+2=6 8–6=2 5+1=4 1–4=5

2+6=8 6–2=8 1+4=5 5–4=1

9 6
7 2 2 4

7
_______ 2
+ _______ =9 2
_______ 4
+ _______ =6

_______
2 + _______
7 =9 _______
4 + _______
2 =6

9 - _______
7 = _______
2 6 - _______
2 = _______
4

2
9 - _______ 7
= _______ 4
6 - _______ 2
= _______

7 10
4 3 2 8

4
_______ 3
+ _______ =7 2
_______ 8
+ _______ = 10

3
_______ 4
+ _______ =7 8
_______ 2
+ _______ = 10

4
7 - _______ 3
= _______ 2
10 - _______ 8
= _______

7 - _______
3 = _______
4 10 - _______
8 = _______
2
© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

8 7
5 ? ? 2

5
_______ 3
+ _______ =8 5
_______ 7
+ 2 = _______

3
_______ + _______
5 =8 5
2 + _______ = _______
7

8 - _______
5 = _______
3 7
_______ 5
- _______ =2

8 - _______
3 = _______
5 _______
7 - 2 = _______
5

? 10
1 5 1 ?

1 + _______
5 = _______
6 1
_______ 9
+ _______ = 10

_______
5 + 1 = _______
6 9
_______ 1
+ _______ = 10

_______
6 - 1 = _______
5 1
10 - _______ 9
= _______

_______
6 - _______
5 =1 10 - _______
9 = _______
1

9 ?
? 3 4 5

6
_______ 3
+ _______ =9 4
_______ 9
+ 5 = _______

_______
3 + _______
6 =9 4
5 + _______ = _______
9

9 - _______
6 = _______
3 9
_______ 4
- _______ =5

9 - _______
3 = _______
6 _______
9 - 5 = _______
4
© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

18 15
10 8 9 6

_______
10 + _______
8 = 18 _______
9 + _______
6 = 15

_______
8 + _______
10 = 18 _______
6 + _______
9 = 15

18 - _______
10 = _______
8 15 - _______
9 = _______
6

18 - _______
8 = _______
10 15 - _______
6 = _______
9

14 12
6 8 4 ?

6
_______ 8
+ _______ = 14 8
4 + _______ 12
= _______

_______
8 + _______
6 = 14 8
_______ 12
+ 4 = _______

14 - _______
6 = _______
8 12
_______ 8
- 4 = _______

14 - _______
8 = _______
6 _______
12 - _______
8 =4

13 ?
? 9 11 6

4
_______ 9
+ _______ = 13 _______
11 17
+ 6 = _______

_______
9 + _______
4 = 13 11
6 + _______ 17
= _______

13 - _______
4 = _______
9 _______
17 - _______
11 =6

13 - _______
9 = _______
4 _______
17 - 6 = _______
11
© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

19 15
9 ? ? 7

_______
9 + _______
10 = _______
19 _______
8 + _______
7 = _______
15

_______
10 + _______
9 = _______
19 _______
7 + _______
8 = _______
15

_______
19 - _______
9 = _______
10 _______
15 - _______
8 = _______
7

_______
19 - _______
10 = _______
9 _______
15 - _______
7 = _______
8

? 13
8 5 9 ?

8
_______ 5
+ _______ 13
= _______ 9
_______ 4
+ _______ 13
= _______

5
_______ 8
+ _______ 13
= _______ 4
_______ 9
+ _______ 13
= _______

13
_______ 8
- _______ 5
= _______ 13
_______ 9
- _______ 4
= _______

13
_______ 5
- _______ 8
= _______ 13
_______ 4
- _______ 9
= _______

14 ?
? 6 9 8

8
_______ 6
+ _______ 14
= _______ 9
_______ 8
+ _______ 17
= _______

6
_______ 8
+ _______ 14
= _______ 8
_______ 9
+ _______ 17
= _______

14
_______ 8
- _______ 6
= _______ 17
_______ 9
- _______ 8
= _______

14
_______ 6
- _______ 8
= _______ 17
_______ 8
- _______ 9
= _______
© Primary Stars Education
Related facts – Bar models
1 Use the bar models to help you complete the related facts.

18 15
10 ? ? 8

10 + _______
8 18
= _______ _______
7 + _______
8 = 15

8
_______ + 10 = _______
18 8
_______ 7
+ _______ = 15

18
_______ - 10 = _______
8 15 - _______
7 8
= _______

_______
18 - _______
8 = 10 15 - _______
8 = _______
7

? 16
5 7 7 ?

5
_______ + 7 = _______
12 _______
7 + _______
9 16
= _______

7 + _______
5 12
= _______ _______
9 + _______
7 = _______
16

_______
12 5
- _______ =7 16
_______ - _______
7 9
= _______

12
_______ 5
- 7 = _______ _______
16 - _______
9 = _______
7

17 ?
? 9 8 5

_______
8 + _______
9 = _______
17 8
_______ + _______
5 13
= _______

_______
9 + _______
8 = _______
17 _______
5 + _______
8 = _______
13

17
_______ - _______
8 9
= _______ 13
_______ 8
- _______ 5
= _______

_______
17 - _______
9 = _______
8 13
_______ - _______
5 8
= _______
© Primary Stars Education

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