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Subtraction Within 100

Grade 2 · On-level practice · 14 questions · Version PG-18IZ5CH-15BG

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1.48 - 17 =
2.84 - 78 =
3.41 - 28 =
4.31 - 25 =
5.33 - 31 =
6.32 - 6 =
7.97 - 42 =
8.40 - 40 =
9.28 - 24 =
10.16 - 5 =
11.18 - 7 =
12.80 - 4 =
13.18 - 13 =
14.59 - 31 =

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 13
  1. 48 - 17 =31
  2. 84 - 78 =6
  3. 41 - 28 =13
  4. 31 - 25 =6
  5. 33 - 31 =2
  6. 32 - 6 =26
  7. 97 - 42 =55
  8. 40 - 40 =0
  9. 28 - 24 =4
  10. 16 - 5 =11
  11. 18 - 7 =11
  12. 80 - 4 =76
  13. 18 - 13 =5
  14. 59 - 31 =28

Worked example

73 - 28 = 45. Regroup 7 tens 3 ones as 6 tens 13 ones.

Common mistake

Subtracting the smaller digit from the larger digit in each column regardless of order.

Helpful hint

Line up place values before subtracting.