A-A+
计算:(1)734-5411-314-6711+914+214(2)(-0.5)÷156×(
问题详情
计算:
(1)7
(2)(-0.5)÷1
(3)-7×
(4)(
(5)-32-
参考答案
(1)734-5411-314-6711+914+214
=(734-314+914+214)-(5411+6711)
=16-12
=4;
(2)(-0.5)÷156×(-11)
=12×611×(-11)
=-3;
(3)-7×54+(-5)×(-54)-25
=(-7+5)×54-25
=(-2)×54-25
=-52-25
=-2910;
(4)(23-1112-1415)×(-60)
=-23×60+1112×60+1415×60
=-40+55+56
=71;
(5)-32-13×[(-5)2×(-35)-240÷(-4)×14]
=-9-13×[25×(-35)+60×14]
=-9-13×[-15+15]
=-9-13×0
=-9-0
=-9.
考点: