题目内容
计算:(1)
;
(2)
;
(3)8+|﹣3|+5×(﹣2);
(4)
.
(2)
(3)8+|﹣3|+5×(﹣2);
(4)
解:(1)
=(
)+(
)
=﹣1+4
=3;
(2)(
)×(﹣12)
=﹣3﹣20
=﹣23;
(3)8+|﹣3|+5×(﹣2)
=8+3﹣10
=1;
(4)﹣
×6+(﹣2)3
=﹣3﹣8
=﹣11.
=(
=﹣1+4
=3;
(2)(
=﹣3﹣20
=﹣23;
(3)8+|﹣3|+5×(﹣2)
=8+3﹣10
=1;
(4)﹣
=﹣3﹣8
=﹣11.
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