Worked example
What is 63 − 28?
Answer & why
Answer: 35
Exchange a ten: 13 − 8 = 5 ones, and 5 − 2 = 3 tens.
Grade 2 · Math
Subtract two-digit numbers
Find differences between two-digit numbers using place value.
8 generated examples + worked example
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Try these examples
8 reproducible examples from this math generator. Choose New examples for another set.
Question 1
What is 53 − 21?
- 30
- 33
- 32
- 31
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 32
53 − 21 = 32. Check by adding 21 back.
Question 2
What is 45 − 30?
- 19
- 18
- 15
- 13
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 15
45 − 30 = 15. Check by adding 30 back.
Question 3
What is 80 − 64?
- 15
- 17
- 16
- 20
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 16
80 − 64 = 16. Check by adding 64 back.
Question 4
What is 99 − 70?
- 27
- 30
- 29
- 31
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 29
99 − 70 = 29. Check by adding 70 back.
Question 5
What is 68 − 61?
- 9
- 7
- 8
- 10
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 7
68 − 61 = 7. Check by adding 61 back.
Question 6
What is 84 − 78?
- 6
- 5
- 8
- 4
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 6
84 − 78 = 6. Check by adding 78 back.
Question 7
What is 39 − 18?
- 21
- 23
- 20
- 25
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 21
39 − 18 = 21. Check by adding 18 back.
Question 8
What is 70 − 18?
- 50
- 53
- 56
- 52
A hint
Use place value or a known fact; estimate before choosing.
Answer & why
Answer: 52
70 − 18 = 52. Check by adding 18 back.