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Subtraction Within 100

Grade 2 · Building confidence · 14 questions · Version PG-1VFV5XV-1N26

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1.16 - 1 =
2.78 - 47 =
3.99 - 59 =
4.82 - 50 =
5.52 - 19 =
6.38 - 21 =
7.39 - 30 =
8.96 - 53 =
9.72 - 8 =
10.17 - 1 =
11.65 - 8 =
12.45 - 19 =
13.47 - 14 =
14.41 - 26 =

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 2
  1. 16 - 1 =15
  2. 78 - 47 =31
  3. 99 - 59 =40
  4. 82 - 50 =32
  5. 52 - 19 =33
  6. 38 - 21 =17
  7. 39 - 30 =9
  8. 96 - 53 =43
  9. 72 - 8 =64
  10. 17 - 1 =16
  11. 65 - 8 =57
  12. 45 - 19 =26
  13. 47 - 14 =33
  14. 41 - 26 =15

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.