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Subtraction Within 10

Grade 1 · Stretch challenge · 12 questions · Version PG-RFC1NB-DZDO

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1.5 - 3 =
2.2 - 2 =
3.3 - 1 =
4.8 - 3 =
5.6 - 3 =
6.3 - 2 =
7.7 - 2 =
8.7 - 1 =
9.6 - 5 =
10.4 - 2 =
11.9 - 9 =
12.6 - 6 =

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

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.