问题
解答题
计算 (1)0.5+(-
(2)10÷[
(3)-32÷(-3)2+3×(-2)+|-4| (4)-13-(1-0.5)×
(5)-7×(-
(6)-99
|
答案
(1)原式=0.5-
-2.75-1 4 1 2
=0.5-
-1 2
-2.751 4
=0-3
=-3;
(2)原式=10÷[
-1 2
)×61 3
=10×6×6
=360;
(3)原式=-9÷9-6+4
=-1-6+4
=-7+4
=-3;
(4)原式=-1-
×1 2
×[3-9]1 3
=1-
×1 2
×(-6)1 3
=1+1
=2;
(5)原式=(-7+19-5)×(-
)22 7
=7×(-
)22 7
=-22;
(6)(-100+
)×341 17
=-100×34+
×341 17
=-3400+2
=-3398.