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Subtraction Within 100

Grade 2 · Building confidence · 14 questions · Version PG-1V5VK8W-1N26

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1.49 - 29 =
2.96 - 29 =
3.39 - 30 =
4.34 - 32 =
5.63 - 48 =
6.27 - 3 =
7.26 - 4 =
8.43 - 28 =
9.84 - 76 =
10.32 - 19 =
11.57 - 12 =
12.23 - 23 =
13.5 - 4 =
14.85 - 67 =

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 3
  1. 49 - 29 =20
  2. 96 - 29 =67
  3. 39 - 30 =9
  4. 34 - 32 =2
  5. 63 - 48 =15
  6. 27 - 3 =24
  7. 26 - 4 =22
  8. 43 - 28 =15
  9. 84 - 76 =8
  10. 32 - 19 =13
  11. 57 - 12 =45
  12. 23 - 23 =0
  13. 5 - 4 =1
  14. 85 - 67 =18

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.