问题
解答题
计算: (1)(-15)+(-6)-(-25) (2)-12002-(1+0.5)×
|
答案
(1)原式=-15-6+25
=4;
(2)原式=-1-
×3 2
×(-1 3
)1 4
=-1+1 8
=-
.7 8
计算: (1)(-15)+(-6)-(-25) (2)-12002-(1+0.5)×
|
(1)原式=-15-6+25
=4;
(2)原式=-1-
×3 2
×(-1 3
)1 4
=-1+1 8
=-
.7 8