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Find the Number: What Makes 1000?

In this worksheet, students use subtraction and addition to find the missing number to make the sum 1000.

'Find the Number: What Makes 1000? ' 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 to make the sum 1000.


 

Example

Find the number that makes the sum correct.

380 + __ = 1000

 

Answer

The opposite (inverse) of adding is subtracting.

So we work out 1000 - 380

We can do this in stages 1000 - 300 = 700

700 - 80 = 620

 

Find the number to make 1000.

930 + __ = 1000

Find the number to make 1000.

580 + __ = 1000

Find the number to make 1000.

510 + __ = 1000

Find the number to make 1000.

870 + __ = 1000

Find the number to make 1000.

330 + __ = 1000

Find the number to make 1000.

950 + __ = 1000

Find the number to make 1000.

710 + __ = 1000

Find the number to make 1000.

600 + __ = 1000

Find the number to make 1000.

880 + __ = 1000

Find the number to make 1000.

640 + __ = 1000

  • Question 1

Find the number to make 1000.

930 + __ = 1000

CORRECT ANSWER
70
  • Question 2

Find the number to make 1000.

580 + __ = 1000

CORRECT ANSWER
420
  • Question 3

Find the number to make 1000.

510 + __ = 1000

CORRECT ANSWER
490
  • Question 4

Find the number to make 1000.

870 + __ = 1000

CORRECT ANSWER
130
  • Question 5

Find the number to make 1000.

330 + __ = 1000

CORRECT ANSWER
670
  • Question 6

Find the number to make 1000.

950 + __ = 1000

CORRECT ANSWER
50
  • Question 7

Find the number to make 1000.

710 + __ = 1000

CORRECT ANSWER
290
  • Question 8

Find the number to make 1000.

600 + __ = 1000

CORRECT ANSWER
400
  • Question 9

Find the number to make 1000.

880 + __ = 1000

CORRECT ANSWER
120
  • Question 10

Find the number to make 1000.

640 + __ = 1000

CORRECT ANSWER
360
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