MathIQO worksheet
Add and subtract integers · Grade 7 · B2.4
Name: ______________________
Date: ______________________
- 1
Calculate: 1 + 2
Warm-upAnswer:
- 2
Calculate: 9 + (−6)
Warm-upAnswer:
- 3
Calculate: 9 + (−3)
Warm-upAnswer:
- 4
Calculate: (−2) − (−3)
On levelAnswer:
- 5
Calculate: (−7) − (−2)
On levelAnswer:
- 6
Calculate: (−7) − 2
On levelAnswer:
- 7
Calculate: 10 + 9 + (−1)
ChallengeAnswer:
- 8
Calculate: 4 + (−2) + (−10)
ChallengeAnswer:
- 9
Calculate: (−10) + (−6) + (−12)
ChallengeAnswer:
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Worksheet code: eyJzIjoibnVtYmVyLWludGVnZXItYWRkLXN1YnRyYWN0IiwiZCI6Wzk5NjM1MTc0MiwxMTc5MTk2NjkwLDExOTcxMjc3OTYsMjM4NTIwMzUwLDc0NDg1NjI2NSwxMTkxODY2MDU4LDI3MzkxNzY4NiwxMDk5NjQyOTI1LDEyMjI0OTMyMzNdLCJ2IjoxfQ.26849ec6e4e5
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Answer key · Add and subtract integers
- 1.3 — 1 + 2 = 3.
- 2.3 — 9 + (−6) = 3.
- 3.6 — 9 + (−3) = 6.
- 4.1 — Subtracting is adding the opposite: (−2) + 3 = 1.
- 5.-5 — Subtracting is adding the opposite: (−7) + 2 = -5.
- 6.-9 — Subtracting is adding the opposite: (−7) + (−2) = -9.
- 7.18 — Add left to right: 10 + 9 = 19, then + (−1) = 18.
- 8.-8 — Add left to right: 4 + (−2) = 2, then + (−10) = -8.
- 9.-28 — Add left to right: (−10) + (−6) = -16, then + (−12) = -28.