计算题(1)12-(-18)+(-7)-15(2)-64÷315×58(3)-63÷7+45÷(-9)(4)(512+23-34)×(-12)(5)(-35)×(+6)×(-10)×(-14)(6)8+(-3)2×(-2)(7)(-5)3×(-35)+32÷(-22)×(-114)(8)100+16÷(-2)4-1-数学
题文
计算题 (1)12-(-18)+(-7)-15 (2)-64÷3
(3)-63÷7+45÷(-9) (4)(
(5)(-
(6)8+(-3)2×(-2) (7)(-5)3×(-
(8)100+16÷(-2)4-
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答案
(1)12-(-18)+(-7)-15 =12+18-7-15 =30-22 =8; (2)-64÷3
=-64×
=-12.5; (3)-63÷7+45÷(-9) =-9-5 =-14; (4)(
=-
=-5-8+9 =-4; (5)(-
=-3.6+2.5 =-1.1; (6)8+(-3)2×(-2) =8+9×(-2) =8-18 =-10; (7)(-5)3×(-
=(-125)×(-
=75+8×
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