Lets use number facts W4 · many yellow cupcakes do I need? There will be twenty candles on my cake. Three will be orange. The rest will be pink. How many pink candles will I have?

Let’s use number facts! Problem Cards 4A

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There will be five people at my party. Three will have blue cupcakes. The rest will have yellow cupcakes. How many

yellow cupcakes do I need?

There will be five candles on my cake. Four will be orange.

The rest will be pink. How many pink candles will I have?

There will be four people at my party. Two will have red hats.

The rest will have blue hats. How many blue hats do I need?

There will be eight people at my party. Four will have yellow balloons. The rest

will have green balloons. How many green balloons do I need?

There will be ten people at my party. Six will have green party bags. The rest will have red party bags. How many red

party bags do I need?

There will be ten people at my party. Five will have red stickers. The rest will

have blue stickers. How many blue stickers do I need?

2 + __ = 4 4 + __ = 8

3 + __ = 5 4 + __ = 5

6 + __ = 10 5 + __ = 10

Let’s use number facts! Problem Cards 4B


There will be ten people at my party. Two will have blue cupcakes. The rest will have yellow cupcakes. How many

yellow cupcakes do I need?

There will be ten candles on my cake. Seven will be orange.


There will be ten people at my party. Five will have red hats.


There will be twelve people at my party. Six will have yellow balloons. The rest will have green balloons. How many

green balloons do I need?

There will be twenty people at my party. Nine will have green party bags. The rest will have red party bags. How

many red party bags do I need?

There will be twenty people at my party. Sixteen will have red stickers. The rest will have blue stickers. How many

blue stickers do I need?

5 + __ = 10 6 + __ = 12

2 + __ = 10 7 + __ = 10

9 + __ = 20 16 + __ = 20

Let’s use number facts! Problem Cards 4C


There will be twenty people at my party. Seven will have blue cupcakes.

The rest will have yellow cupcakes. How many yellow cupcakes do I need?

There will be twenty candles on my cake. Three will be orange.


There will be fourteen people at my party. Seven will have red hats.


There will be sixteen people at my party. Eight will have yellow balloons. The rest will have green balloons. How

many green balloons do I need?

There will be twenty-three people at my party. Seventeen will have green

party bags. The rest will have red ones. How many red party bags do I need?

There will be twenty-four people at my party. Sixteen will have red stickers. The rest will have blue stickers. How many

blue stickers do I need?

Let’s use number facts! Number Sentence Cards 4A


0 + 5 = 5

Use a sticky note to cover one of the numbers in each number sentence. Can the children work out what the hidden number is?

1 + 4 = 5

2 + 3 = 5

3 + 2 = 5

4 + 1 = 5

5 + 0 = 5



5 - 0 = 5


5 - 1 = 4

5 - 2 = 3

5 - 3 = 2

5 - 4 = 1

5 - 5 = 0



0 + 10 = 10


1 + 9 = 10

2 + 8 = 10

3 + 7 = 10

4 + 6 = 10

5 + 5 = 10



6 + 4 = 10


7 + 3 = 10

8 + 2 = 10

9 + 1 = 10

10 + 0 = 10

10 - 0 = 10



10 - 1 = 9


10 - 2 = 8

10 - 3 = 7

10 - 4 = 6

10 - 5 = 5

10 - 6 = 4



10 - 7 = 3


10 - 8 = 2

10 - 9 = 1

10 - 10 = 0

1 + 1 = 2

2 + 2 = 4



3 + 3 = 6


4 + 4 = 8

5 + 5 = 10

6 + 6 = 12

7 + 7 = 14

2 - 1 = 1



4 - 2 = 2


6 - 3 = 3

8 - 4 = 4

10 - 5 = 5

12 - 6 = 6

14 - 7 = 7

Let’s use number facts! Number Sentence Cards 4B


0 + 20 = 20


1 + 19 = 20

2 + 18 = 20

3 + 17 = 20

4 + 16 = 20

5 + 15 = 20



6 + 14 = 20


7 + 13 = 20

8 + 12 = 20

9 + 11 = 20

10 + 10 = 20

11 + 9 = 20



12 + 8 = 20


13 + 7 = 20

14 + 6 = 20

15 + 5 = 20

16 + 4 = 20

17 + 3 = 20



18 + 2 = 20


19 + 1 = 20

20 + 0 = 20

20 - 0 = 20

20 - 1 = 19

20 - 2 = 18



20 - 3 = 17


20 - 4 = 16

20 - 5 = 15

20 - 6 = 14

20 - 7 = 13

20 - 8 = 12



20 - 9 = 11


20 - 10 = 10

20 - 11 = 9

20 - 12 = 8

20 - 13 = 7

20 - 14 = 6



20 - 15 = 5


20 - 16 = 4

20 - 17 = 3

20 - 18 = 2

20 - 19 = 1

20 - 20 = 0



9 + 6 = 15


8 + 4 = 12

7 + 5 = 12

17 + 4 = 21

18 + 12 = 30

19 + 5 = 24



15 - 6 = 9


12 - 5 = 7

14 - 6 = 8

22 - 5 = 17

30 - 11 = 19

24 - 5 = 19

Name: ___________________________ Date: __________________

Let’s use number facts! Photo Sheet


Which resources did you use?

Today I have been solving missing number sentences using number facts.

Draw the face on the bee to self-assess your work.

Stick your photo here

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Lets use number facts W4 · many yellow cupcakes do I need? There will be twenty candles on my cake. Three will be orange. The rest will be pink. How many pink candles will I have?