(1)计算:37-127+27-327.(2)计算:(22-78)2-(22+78)2.(3)-(127)-13+(19)2.(4)(15)12×(35)-12×(325)12(5)642×8÷62(6)(6-215)×3-612(7)2×3÷12+(-3)2+(7)2;(8)5-12×512+(212÷312-数学
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(-3)2+(
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(8)5-
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答案
(1)原式=3
(2)原式=(2
(3)原式=-
(4)原式=
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(-3)2+(
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1 |
2 |
1 |
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1 |
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1 |
2 |
答案
(1)原式=3
(2)原式=(2
(3)原式=-
(4)原式=
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