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Subtraction Within 100

Grade 2 · Stretch challenge · 14 questions · Version PG-C0E4GK-Y5PE

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1.74 - 0 =
2.15 - 11 =
3.12 - 9 =
4.42 - 20 =
5.64 - 51 =
6.64 - 43 =
7.62 - 9 =
8.94 - 8 =
9.41 - 16 =
10.35 - 32 =
11.92 - 41 =
12.31 - 18 =
13.75 - 24 =
14.62 - 60 =

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 1
  1. 74 - 0 =74
  2. 15 - 11 =4
  3. 12 - 9 =3
  4. 42 - 20 =22
  5. 64 - 51 =13
  6. 64 - 43 =21
  7. 62 - 9 =53
  8. 94 - 8 =86
  9. 41 - 16 =25
  10. 35 - 32 =3
  11. 92 - 41 =51
  12. 31 - 18 =13
  13. 75 - 24 =51
  14. 62 - 60 =2

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.