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Subtraction Within 100

Grade 2 · Stretch challenge · 14 questions · Version PG-KK1BGF-Y5PE

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1.42 - 1 =
2.11 - 0 =
3.48 - 3 =
4.26 - 2 =
5.58 - 31 =
6.51 - 47 =
7.64 - 26 =
8.83 - 45 =
9.3 - 3 =
10.12 - 2 =
11.37 - 8 =
12.31 - 16 =
13.86 - 85 =
14.44 - 5 =

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 11
  1. 42 - 1 =41
  2. 11 - 0 =11
  3. 48 - 3 =45
  4. 26 - 2 =24
  5. 58 - 31 =27
  6. 51 - 47 =4
  7. 64 - 26 =38
  8. 83 - 45 =38
  9. 3 - 3 =0
  10. 12 - 2 =10
  11. 37 - 8 =29
  12. 31 - 16 =15
  13. 86 - 85 =1
  14. 44 - 5 =39

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.