计算:(1)[1213-(58-16+712]×24]÷(-5);(2)(-10)+8×(-2)2-(-4)×(-3);(3)-0.252÷(-0.5)3+(18-12)×(-1)10;(4)-3×(-23)2-4×(1-23)-8÷(23)2;(5)(-2)3-134×(-821)-(-2)×(-1)×-数学
题文
计算: (1)[1
(2)(-10)+8×(-2)2-(-4)×(-3); (3)-0.252÷(-0.5)3+(
(4)-3×(-
(5)(-2)3-1
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答案
(1)原式=(
=(
=4
(2)原式=-10+32-12=10; (3)原式=-
=
=
(4)原式=-3×
=-
=-20
(5)原式=-8+
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