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Subtraction Within 100

Grade 2 · Stretch challenge · 14 questions · Version PG-J63AZK-Y5PE

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1.18 - 10 =
2.30 - 24 =
3.33 - 32 =
4.72 - 20 =
5.32 - 5 =
6.84 - 58 =
7.50 - 22 =
8.9 - 5 =
9.39 - 14 =
10.98 - 2 =
11.64 - 40 =
12.78 - 9 =
13.6 - 1 =
14.48 - 48 =

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 14
  1. 18 - 10 =8
  2. 30 - 24 =6
  3. 33 - 32 =1
  4. 72 - 20 =52
  5. 32 - 5 =27
  6. 84 - 58 =26
  7. 50 - 22 =28
  8. 9 - 5 =4
  9. 39 - 14 =25
  10. 98 - 2 =96
  11. 64 - 40 =24
  12. 78 - 9 =69
  13. 6 - 1 =5
  14. 48 - 48 =0

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.