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Subtraction Within 10

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

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1.9 - 6 =
2.5 - 1 =
3.4 - 4 =
4.10 - 9 =
5.8 - 5 =
6.2 - 0 =
7.1 - 0 =
8.10 - 7 =
9.8 - 3 =
10.3 - 2 =
11.1 - 1 =
12.9 - 2 =

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

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.