问题
解答题
(1)(-
(2)(-999
(3)12÷(-6)×
(4)-32-|(-5)3|×(-
(5)-14-(1-0.5)×
(6)-53÷(-52)-(-8)2÷(-22) |
答案
(1)原式=-
÷(-1 12
)=7 12
×1 12
=12 7
;1 7
(2)原式=(-1000+
)×(-25)=25000-1=24999;1 25
(3)原式=12×(-
)×1 6
-36=-361 6
;1 3
(4)原式=-9-125×
-18÷2=-9-100-9=-118;4 25
(5)原式=-1-
×1 2
÷(-2-9)=-1-2 3
÷(-11)=-1 3
;32 33
(6)原式=-125÷(-25)-64÷(-4)=5+16=21.