题目内容
计算:(1)﹣4×(﹣3)÷(﹣2)
(2)﹣32﹣[(﹣2)2+(1﹣
)÷(﹣2)]
(2)﹣32﹣[(﹣2)2+(1﹣
解:(1)﹣4×(﹣3)÷(﹣2),
=12÷(﹣2),
=﹣6;
(2)﹣32﹣[(﹣2)2+(1﹣
)÷(﹣2)],
=﹣9﹣[4+
÷(﹣2)],
=﹣9﹣(4﹣
),
=﹣9﹣4+
,
=
.
=12÷(﹣2),
=﹣6;
(2)﹣32﹣[(﹣2)2+(1﹣
=﹣9﹣[4+
=﹣9﹣(4﹣
=﹣9﹣4+
=
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