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Addition and Subtraction: Find the Number (1-10)

In this worksheet, students find missing numbers using addition, subtraction and number bond knowledge.

Key stage:  KS 1

Curriculum topic:  Number: Addition and Subtraction

Curriculum subtopic:  Solve Add/Subtract Problems to 20

Difficulty level:  

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QUESTION 1 of 10

We can add and subtract to find missing numbers. Look at this problem.

 

  + 2 = 5

 

We can find the missing number like this.

5 - 2 = 3

 

Start with the answer, 5.

Subtract 2.

5 - 2 = 3.

The missing number is 3.

 

Now check.

3 + 2 = 5

Find the missing number.

? + 2 = 8

Find the missing number.

? + 5 = 9

Find the missing number.

? + 3 = 8

Find the missing number.

? + 1 = 6

Find the missing number.

? + 4 = 7

Find the missing number.

? - 7 = 3

Find the missing number.

? - 1 = 2

Find the missing number.

? - 5 = 1

Find the missing number.

? + 5 = 9

Find the missing number.

? + 2 = 5

  • Question 1

Find the missing number.

? + 2 = 8

CORRECT ANSWER
6
EDDIE SAYS
8 − 2 = 6
6 + 2 = 8
  • Question 2

Find the missing number.

? + 5 = 9

CORRECT ANSWER
4
EDDIE SAYS
9 − 5 = 4
4 + 5 = 9
  • Question 3

Find the missing number.

? + 3 = 8

CORRECT ANSWER
5
EDDIE SAYS
8 − 3 = 5
5 + 3 = 8
  • Question 4

Find the missing number.

? + 1 = 6

CORRECT ANSWER
5
EDDIE SAYS
6 − 1 = 5
5 + 1 = 6
  • Question 5

Find the missing number.

? + 4 = 7

CORRECT ANSWER
3
EDDIE SAYS
7 − 4 = 3
3 + 4 = 7
  • Question 6

Find the missing number.

? - 7 = 3

CORRECT ANSWER
10
EDDIE SAYS
3 + 7 = 10
10 − 7 = 3
  • Question 7

Find the missing number.

? - 1 = 2

CORRECT ANSWER
3
EDDIE SAYS
2 + 1 = 3
3 − 1 = 2
  • Question 8

Find the missing number.

? - 5 = 1

CORRECT ANSWER
6
EDDIE SAYS
1 + 5 = 6
6 − 5 = 1
  • Question 9

Find the missing number.

? + 5 = 9

CORRECT ANSWER
4
EDDIE SAYS
9 − 5 = 4
4 + 5 = 9
  • Question 10

Find the missing number.

? + 2 = 5

CORRECT ANSWER
3
EDDIE SAYS
5 − 2 = 3
3 + 2 = 5
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