MathIQO worksheet
Add and subtract integers · Grade 7 · B2.4
Name: ______________________
Date: ______________________
- 1
Calculate: 8 + 7
Warm-upAnswer:
- 2
Calculate: (−3) + (−5)
Warm-upAnswer:
- 3
Calculate: 7 + 1
Warm-upAnswer:
- 4
Calculate: (−5) − (−1)
On levelAnswer:
- 5
Calculate: 5 − 2
On levelAnswer:
- 6
Calculate: (−7) − 8
On levelAnswer:
- 7
Calculate: 11 + 1 + (−10)
ChallengeAnswer:
- 8
Calculate: 4 + 3 + 10
ChallengeAnswer:
- 9
Calculate: 11 + 5 + (−10)
ChallengeAnswer:
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Worksheet code: eyJzIjoibnVtYmVyLWludGVnZXItYWRkLXN1YnRyYWN0IiwiZCI6WzgyOTkxOTY4MCwyMDk1MDY4MTk3LDEzMTkzNDY2OTMsODA5NjM1NiwyMzk5MTc0NDEsOTQ2ODA3NjYwLDk1NDQ2NDI4NSwyMzkxMzM3MjUsMjA1NTQwODAyM10sInYiOjF9.d54057849b4a
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Answer key · Add and subtract integers
- 1.15 — 8 + 7 = 15.
- 2.-8 — (−3) + (−5) = -8.
- 3.8 — 7 + 1 = 8.
- 4.-4 — Subtracting is adding the opposite: (−5) + 1 = -4.
- 5.3 — Subtracting is adding the opposite: 5 + (−2) = 3.
- 6.-15 — Subtracting is adding the opposite: (−7) + (−8) = -15.
- 7.2 — Add left to right: 11 + 1 = 12, then + (−10) = 2.
- 8.17 — Add left to right: 4 + 3 = 7, then + 10 = 17.
- 9.6 — Add left to right: 11 + 5 = 16, then + (−10) = 6.