Subtraction Within 10: math test solutions, Grade 1

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Test solutions with the detailed point scale. Add up your points and spot what to review.

Suggested time: 45 minutes. Out of 20 points. Calculator allowed only when the problem says so.

Sommaire

a) 6, b) 0, c) 8, d) 1, e) 5, f) 4, g) 3, h) 1. (0.5 pt for each correct answer, 4 pts in all)

a) 6 stars are crossed out. (1 pt)

b) 4 stars are not crossed out. (1 pt)

c) \( 10 - 6 = 4 \). (1 pt)

a) The hops go to 8, 7, 6, 5, then 4. We land on 4. (2 pts)

b) \( 9 - 5 = 4 \). (1 pt)

The whole is 8. The facts are \( 3 + 5 = 8 \) (1 pt), \( 5 + 3 = 8 \) (1 pt), \( 8 - 3 = 5 \) (1 pt) and \( 8 - 5 = 3 \) (1 pt).

a) \( 3 + 4 = 7 \), so the box is 4. (1 pt)

b) \( 6 + 2 = 8 \), so the box is 8. (1 pt)

c) Nothing is taken away, so the box is 0. (1 pt)

\( 10 - 7 = 3 \). (1 pt)

Zoe has 3 stickers left. (1 pt)

Check: \( 7 + 3 = 10 \). (1 pt)

Test yourself: quick challenge for Grade 1