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Subtraction Within 100

Grade 2 · Building confidence · 14 questions · Version PG-10R9LV4-1N26

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1.24 - 15 =
2.44 - 22 =
3.15 - 15 =
4.62 - 10 =
5.57 - 55 =
6.96 - 96 =
7.70 - 4 =
8.73 - 18 =
9.82 - 1 =
10.29 - 27 =
11.8 - 7 =
12.85 - 3 =
13.27 - 5 =
14.19 - 11 =

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 16
  1. 24 - 15 =9
  2. 44 - 22 =22
  3. 15 - 15 =0
  4. 62 - 10 =52
  5. 57 - 55 =2
  6. 96 - 96 =0
  7. 70 - 4 =66
  8. 73 - 18 =55
  9. 82 - 1 =81
  10. 29 - 27 =2
  11. 8 - 7 =1
  12. 85 - 3 =82
  13. 27 - 5 =22
  14. 19 - 11 =8

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.