Subtract by thinking of an addition
1st grade (Year 2 in England) · 16 questions · Common Core: 1.OA.B.4 · England: Y1 Addition and subtraction, Y2 Addition and subtraction
Name
Date
Score/ 16
Question 1
To work out 18 − 9, think: 9 + __ = 18
Answer
Question 2
9 + 8 = 17. Use this to find 17 − 9.
Answer
Question 3
Which addition helps you work out 13 − 7?
- A. 7 + 6 = 13
- B. 13 + 7 = 20
- C. 6 + 13 = 19
- D. 7 + 7 = 14
Question 4
To work out 10 − 3, think: 3 + __ = 10
Answer
Question 5
3 + 8 = 11. Use this to find 11 − 3.
Answer
Question 6
Which addition helps you work out 10 − 4?
- A. 10 + 4 = 14
- B. 4 + 4 = 8
- C. 6 + 10 = 16
- D. 4 + 6 = 10
Question 7
To work out 9 − 4, think: 4 + __ = 9
Answer
Question 8
4 + 2 = 6. Use this to find 6 − 4.
Answer
Question 9
Which addition helps you work out 14 − 5?
- A. 14 + 5 = 19
- B. 5 + 9 = 14
- C. 9 + 14 = 23
- D. 5 + 5 = 10
Question 10
To work out 17 − 8, think: 8 + __ = 17
Answer
Question 11
6 + 7 = 13. Use this to find 13 − 6.
Answer
Question 12
Which addition helps you work out 13 − 8?
- A. 8 + 5 = 13
- B. 8 + 8 = 16
- C. 5 + 13 = 18
- D. 13 + 8 = 21
Question 13
To work out 12 − 8, think: 8 + __ = 12
Answer
Question 14
4 + 5 = 9. Use this to find 9 − 4.
Answer
Question 15
Which addition helps you work out 14 − 9?
- A. 9 + 5 = 14
- B. 14 + 9 = 23
- C. 9 + 9 = 18
- D. 5 + 14 = 19
Question 16
To work out 10 − 4, think: 4 + __ = 10
Answer
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