Evaluate -8(-10)-71/-1

$- 8 \times (- 10) - 7 \times \frac{1}{- 1}$

Simplify each term.

Multiply $- 8$ by $- 10$ .

$80 - 7 \cdot \frac{1}{- 1}$

Divide $1$ by $- 1$ .

$80 - 7 \cdot - 1$

Multiply $- 7$ by $- 1$ .

$80 + 7$

$80 + 7$

Add $80$ and $7$ .

$87$

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