 # Find the Number: What Makes 1000?

In this worksheet, students use subtraction and addition to find the missing number to make the sum 1000. Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Use Correct Methods to Problem Solve

Difficulty level:   ### 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

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

70
• Question 2

Find the number to make 1000.

580 + __ = 1000

420
• Question 3

Find the number to make 1000.

510 + __ = 1000

490
• Question 4

Find the number to make 1000.

870 + __ = 1000

130
• Question 5

Find the number to make 1000.

330 + __ = 1000

670
• Question 6

Find the number to make 1000.

950 + __ = 1000

50
• Question 7

Find the number to make 1000.

710 + __ = 1000

290
• Question 8

Find the number to make 1000.

600 + __ = 1000

400
• Question 9

Find the number to make 1000.

880 + __ = 1000

120
• Question 10

Find the number to make 1000.

640 + __ = 1000

360
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