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Find the Number: What Makes the Sum Correct? (2)

In this worksheet, students find the missing number in a sum by using addition and subtraction.

'Find the Number: What Makes the Sum Correct? (2)' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Addition and Subtraction

Curriculum subtopic:  Use Correct Methods to Problem Solve

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet you must find the missing number in a sum.

 

Example

Find the number that makes the sum correct.

332 + __ = 900

 

Answer

The opposite (inverse) of adding is subtracting.

So we work out 900 - 332 = 568

Find the number that makes the sum correct.

73 + __ = 300

Find the number that makes the sum correct.

319 + __ = 900

Find the number that makes the sum correct.

70 + __ = 200

Find the number that makes the sum correct.

361 + __ = 700

Find the number that makes the sum correct.

50 + __ = 400

Find the number that makes the sum correct.

118 + __ = 900

Find the number that makes the sum correct.

184 + __ = 200

Find the number that makes the sum correct.

93 + __ = 800

Find the number that makes the sum correct.

419 + __ = 800

Find the number that makes the sum correct.

13 + __ = 200

  • Question 1

Find the number that makes the sum correct.

73 + __ = 300

CORRECT ANSWER
227
  • Question 2

Find the number that makes the sum correct.

319 + __ = 900

CORRECT ANSWER
581
  • Question 3

Find the number that makes the sum correct.

70 + __ = 200

CORRECT ANSWER
130
  • Question 4

Find the number that makes the sum correct.

361 + __ = 700

CORRECT ANSWER
339
  • Question 5

Find the number that makes the sum correct.

50 + __ = 400

CORRECT ANSWER
350
  • Question 6

Find the number that makes the sum correct.

118 + __ = 900

CORRECT ANSWER
782
  • Question 7

Find the number that makes the sum correct.

184 + __ = 200

CORRECT ANSWER
16
  • Question 8

Find the number that makes the sum correct.

93 + __ = 800

CORRECT ANSWER
707
  • Question 9

Find the number that makes the sum correct.

419 + __ = 800

CORRECT ANSWER
381
  • Question 10

Find the number that makes the sum correct.

13 + __ = 200

CORRECT ANSWER
187
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