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$$
((-2) + (+3)) \times (-5) = \\[2ex]
(-5-4) \times (-6) = \\[2ex]
((+2)+(-7)) \div (-5) = \\[2ex]
-5 \times (-4 - (-3)) =
$$

پاسخ

$$
((-2) + (+3)) \times (-5) = (+1) \times (-5) = -5 \\[2ex]
(-5-4) \times (-6) = (-9) \times (-6) = +54 \\[2ex]
((+2)+(-7)) \div (-5) = (-5) \div (-5) = +1 \\[2ex]
-5 \times (-4 - (-3)) = -5 \times (-1) = +5
$$