Question

1. 60-(-20)-(+10)
2. (-15)+12-9+1​

Answer 1

Answer:

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• 1) 60 - (-20) - (+10)
• = 60 + 20 - 10
• = 80 - 10
• = 70

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• 2) (-15) + 12 - 9 + 1
• = -3 - 9 + 1
• = -12 + 1
• = -11

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