Year 5 Maths Challenge 1 11.1.21

Find and make number bonds Use images to represent number bonds Find all the number bonds to a given number Represent number bonds as a bar model

Which of these represent a bond to 6?

Do any of these represent a bond to 13?

Which of these represent a bond to 6?

Do any of these represent a bond to 13?

Find the number bonds to 6

I think I’ve found them all!

4

3

4

Have a think

2

1

5

Use the tens frame to find all of the number bonds to 6

6

4

2

4

0

6

0 2

5

1

3

3

1

5

Use the tens frame to find all of the number bonds to 13

13 12 11 10 9 8 7

0 1 2 3 4 5 6

0 1 2 3 4 5 6

13 12 11 10 9 8 7

Have a think

Find all the number bonds to 10

10

9

0

0

8

1

2 7

2 3

6

3 4 5

4

5

6

1

8

7

9

10

7

3

10 Have a think

17

3

20

1

11

9

9

20

I know that 8 2 10

8

12

20

10

20

10 13 10

7

7

10 7

7

13

20

3

3

10

10 10

17

20 17

3

3

20

1)

3) Copy and complete the bar models.

4) Find all the number bonds to 20.

2)

b)

Further challenge 1) True or false? Explain how you know.

2)

3)

3) Copy and complete the bar models.

1)

2 + 18 = 20

16 12

2 + 8 = 10 3 + 17 = 20

3

10

10

3 + 7 = 10 4) Find all the number bonds to 20.

2) = 10 = 20

= 10 = 20 7

9 19

7

b)

Further challenge 1) True or false? Explain how you know.

True 2)

3)