题目内容

计算题:
(1);(2)
(3)
(4)
(5)
(6)

解:(1)原式=2
=
=﹣2+6
=4;
(2)原式=﹣2×3×(﹣3)﹣5﹣1
=18﹣5﹣1
=12;
(3)原式=﹣
=
=
(4)原式=()×(﹣6)
=﹣2+8﹣1+
=15+3
=18
(5)原式==×(5+4﹣8)
=
(6)原式=﹣9﹣[﹣]
=﹣9﹣(﹣
=﹣9﹣(﹣
=﹣9﹣(﹣6
=﹣2

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