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Addition and Subtraction: Find the Missing Number (2)

In this worksheet, students subtract to find the missing number in an addition.

'Addition and Subtraction: Find the Missing Number (2)' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Addition and Subtraction

Curriculum subtopic:  Add/Subtract up to Four-Digit Numbers

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

This worksheet is about finding the missing number in an addition.

 

Example

Find the missing number.

 
 + 269 = 623

 

Answer

Adding and subtracting are opposites (inverses).

So to work out the missing number we simply subtract.

623 - 269 = 354

 

Answer is 354

Find the missing number.

 
+ 731 = 775

Find the missing number.

 
+ 155 = 219

Find the missing number.

 
+ 876 = 914

Find the missing number.

 
+ 739 = 741

Find the missing number.

 
+ 553 = 946

Find the missing number.

 
+ 514 = 815

Find the missing number.

 
+ 203 = 512

Find the missing number.

 
+ 435 = 504

Find the missing number.

 
+ 192 = 940

Find the missing number.

 
+ 575 = 801
  • Question 1

Find the missing number.

 
+ 731 = 775
CORRECT ANSWER
44
  • Question 2

Find the missing number.

 
+ 155 = 219
CORRECT ANSWER
64
  • Question 3

Find the missing number.

 
+ 876 = 914
CORRECT ANSWER
38
  • Question 4

Find the missing number.

 
+ 739 = 741
CORRECT ANSWER
2
  • Question 5

Find the missing number.

 
+ 553 = 946
CORRECT ANSWER
393
  • Question 6

Find the missing number.

 
+ 514 = 815
CORRECT ANSWER
301
  • Question 7

Find the missing number.

 
+ 203 = 512
CORRECT ANSWER
309
  • Question 8

Find the missing number.

 
+ 435 = 504
CORRECT ANSWER
69
  • Question 9

Find the missing number.

 
+ 192 = 940
CORRECT ANSWER
748
  • Question 10

Find the missing number.

 
+ 575 = 801
CORRECT ANSWER
226
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