(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
题文
(1)计算:3
(2)计算:(2
(3)
(4)(
(5)
(6)(
(7)
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题文
(1)计算:3
(2)计算:(2
(3)
(4)(
(5)
(6)(
(7)
|