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Subtraction Within 100

Grade 2 · Stretch challenge · 14 questions · Version PG-9SHAWS-Y5PE

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1.88 - 46 =
2.32 - 31 =
3.29 - 17 =
4.33 - 32 =
5.18 - 3 =
6.75 - 30 =
7.90 - 90 =
8.1 - 1 =
9.90 - 44 =
10.93 - 28 =
11.30 - 14 =
12.50 - 36 =
13.91 - 34 =
14.43 - 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 9
  1. 88 - 46 =42
  2. 32 - 31 =1
  3. 29 - 17 =12
  4. 33 - 32 =1
  5. 18 - 3 =15
  6. 75 - 30 =45
  7. 90 - 90 =0
  8. 1 - 1 =0
  9. 90 - 44 =46
  10. 93 - 28 =65
  11. 30 - 14 =16
  12. 50 - 36 =14
  13. 91 - 34 =57
  14. 43 - 26 =17

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.