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Subtraction Within 10

Grade 1 · Stretch challenge · 12 questions · Version PG-415C5M-DZDO

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1.2 - 2 =
2.1 - 1 =
3.9 - 3 =
4.6 - 1 =
5.7 - 0 =
6.9 - 8 =
7.6 - 6 =
8.7 - 1 =
9.3 - 1 =
10.4 - 4 =
11.4 - 0 =
12.5 - 4 =

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 13
  1. 2 - 2 =0
  2. 1 - 1 =0
  3. 9 - 3 =6
  4. 6 - 1 =5
  5. 7 - 0 =7
  6. 9 - 8 =1
  7. 6 - 6 =0
  8. 7 - 1 =6
  9. 3 - 1 =2
  10. 4 - 4 =0
  11. 4 - 0 =4
  12. 5 - 4 =1

Worked example

9 - 4 = 5. Count back four from 9: 8, 7, 6, 5.

Common mistake

Counting the starting number as one of the steps back.

Helpful hint

Count backward one step for each amount taken away.