问题
解答题
计算: (1)-10+8÷(-2)2-(-4)×(-3); (2)(
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答案
(1)原式=-10+8÷4-12
=-10+2-12
=-20;
(2)原式=-(
×30-1 2
×30-5 6
×30)3 5
=-(15-25-18)
=28.
计算: (1)-10+8÷(-2)2-(-4)×(-3); (2)(
|
(1)原式=-10+8÷4-12
=-10+2-12
=-20;
(2)原式=-(
×30-1 2
×30-5 6
×30)3 5
=-(15-25-18)
=28.