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Addition and Subtraction: Find the Missing Numbers (4)

In this worksheet, students use addition and subtraction to work out the missing number in a problem.

'Addition and Subtraction: Find the Missing Numbers (4)' worksheet

Key stage:  KS 1

Curriculum topic:  Number: Addition and Subtraction

Curriculum subtopic:  Understand Relationship Between Addition and Subtraction

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you must work out the missing number in an addition sum.

 

Example

Find out the value of the missing number.

 

25 +   = 28

 

 

Answer

The opposite of adding is taking away.

We can work this out by doing 28 - 25 = 3

Or we can count on from 25.....26, 27, 28 ........ that's 3 numbers.

So, the answer is 3

Find out the value of the missing number.

 

 

 

19 + 2 =  

Find out the value of the missing number.

 

 

 

6 +   = 25

Find out the value of the missing number.

 

 

 

27 +   = 28

Find out the value of the missing number.

 

 

 

15 + 9 =  

Find out the value of the missing number.

 

 

 

10 +   = 28

Find out the value of the missing number.

 

 

 

20 +   = 24

Find out the value of the missing number.

 

 

 

17 + 1 =  

Find out the value of the missing number.

 

 

 

11 +   = 22

Find out the value of the missing number.

 

 

 

17 + 5 =  

Find out the value of the missing number.

 

 

 

23 +   = 25
  • Question 1

Find out the value of the missing number.

 

 

 

19 + 2 =  
CORRECT ANSWER
21
EDDIE SAYS
19 + 2 = 21
  • Question 2

Find out the value of the missing number.

 

 

 

6 +   = 25
CORRECT ANSWER
19
EDDIE SAYS
25 - 6 = 19
  • Question 3

Find out the value of the missing number.

 

 

 

27 +   = 28
CORRECT ANSWER
1
EDDIE SAYS
28 - 27 = 1
  • Question 4

Find out the value of the missing number.

 

 

 

15 + 9 =  
CORRECT ANSWER
24
EDDIE SAYS
15 + 9 = 24
  • Question 5

Find out the value of the missing number.

 

 

 

10 +   = 28
CORRECT ANSWER
18
EDDIE SAYS
28 - 10 = 18
  • Question 6

Find out the value of the missing number.

 

 

 

20 +   = 24
CORRECT ANSWER
4
EDDIE SAYS
24 - 20 = 4
  • Question 7

Find out the value of the missing number.

 

 

 

17 + 1 =  
CORRECT ANSWER
18
EDDIE SAYS
17 + 1 = 18
  • Question 8

Find out the value of the missing number.

 

 

 

11 +   = 22
CORRECT ANSWER
11
EDDIE SAYS
22 - 11 = 11
  • Question 9

Find out the value of the missing number.

 

 

 

17 + 5 =  
CORRECT ANSWER
22
EDDIE SAYS
17 + 5 = 22
  • Question 10

Find out the value of the missing number.

 

 

 

23 +   = 25
CORRECT ANSWER
2
EDDIE SAYS
25 - 23 = 2
---- OR ----

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