问题
解答题
计算下列各题: (1)(
(2)5-(-5)3÷(-5)2 (3)(
(4)-16-(1-
|
答案
(1)原式=
×(-16)+1 2
×161 8
=-8+2
=-6;
(2)原式=5-(-125)÷25
=5+5
=10;
(3)原式=
×(-60)-1 15
×(-60)-5 6
×(-60)7 12
=-4+50+35
=81;
(4)原式=-1-
×1 2
×(2-9)1 3
=-1+
×71 6
=
.1 6