题目内容
计算:
(1)(﹣3)+(﹣4)﹣(+11)﹣(﹣9);
(2)﹣32×2﹣3×(﹣2)2
(1)(﹣3)+(﹣4)﹣(+11)﹣(﹣9);
(2)﹣32×2﹣3×(﹣2)2
解:
(1)原式=(﹣3)+(﹣4)+(﹣11)+(+9),
=﹣18+9,
=﹣9.(
2)原式=﹣9×2﹣3×4,
=﹣18﹣12,
=﹣30.
(1)原式=(﹣3)+(﹣4)+(﹣11)+(+9),
=﹣18+9,
=﹣9.(
2)原式=﹣9×2﹣3×4,
=﹣18﹣12,
=﹣30.
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