问题
解答题
计算: (1)-3+10-5 (2)-0.5+(-15)-(-17)-|-12| (3)-3.5÷
(4)(
(5)-2×(-
(6)-14+〔1-(1-0.5×2)〕÷|2-(-3)2| |
答案
(1)原式=-3-5+10
=2;
(2)原式=-0.5-15+17-12
=-27.5+17
=-10.5;
(3)原式=-
×7 2
×(-8 7
)3 4
=3;
(4)原式=-(
×36+1 2
×36-5 6
×36)7 12
=-(18+30-21)
=-27;
(5)原式=-2×
+8+1 4 1 2
=-
+8+1 2 1 2
=8;
(6)原式=-1+[1-0]÷7
=-1+1 7
=-
.6 7