# Complete the Subtraction: 0-20

In this worksheet, students use subtraction to solve missing number problems.

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Add and Subtract to 20

Difficulty level:

### QUESTION 1 of 10

Subtraction is taking something away.

You can use subtraction to find missing numbers. You do it like this.

Example

Count the top row of chicks. There are 10.

Take 2 chicks away.

What's the difference? (How many are left?)

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10 - 2 = 8

Count these objects. What's the difference?

Remember:

• count the top row
• count the bottom row
• subtract the bottom row from the top row.

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Count these objects. What's the difference?

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Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

-

Count the objects. What's the difference?

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• Question 1

Count these objects. What's the difference?

Remember:

• count the top row
• count the bottom row
• subtract the bottom row from the top row.

-

2
EDDIE SAYS
Top row = 8 objects
Bottom row = 6 objects
8 − 6 = 2
• Question 2

Count these objects. What's the difference?

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13
EDDIE SAYS
Top row = 16 objects
Bottom row = 3 objects
16 − 3 = 13
• Question 3

Count the objects. What's the difference?

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16
EDDIE SAYS
Top row = 19 objects
Bottom row = 3 objects
19 − 3 = 16
• Question 4

Count the objects. What's the difference?

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3
EDDIE SAYS
Top row = 10 objects
Bottom row = 7 objects
10 − 7 = 3
• Question 5

Count the objects. What's the difference?

-

15
EDDIE SAYS
Top row = 16 objects
Bottom row = 1 object
16 − 1 = 15
• Question 6

Count the objects. What's the difference?

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6
EDDIE SAYS
Top row = 10 objects
Bottom row = 4 objects
10 − 4 = 6
• Question 7

Count the objects. What's the difference?

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13
EDDIE SAYS
Top row = 14 objects
Bottom row = 1 object
14 − 1 = 13
• Question 8

Count the objects. What's the difference?

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20
EDDIE SAYS
Top row = 25 objects
Bottom row = 5 objects
25 − 5 = 20
• Question 9

Count the objects. What's the difference?

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13
EDDIE SAYS
Top row = 15 objects
Bottom row = 2 objects
15 − 2 = 13
• Question 10

Count the objects. What's the difference?

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3
EDDIE SAYS
Top row = 9 objects
Bottom row = 6 objects
9 − 6 = 3
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