A-A+
计算:(1)(13-57-25)×105;(2)(-112)×(-113)×(-114)×(
问题详情
计算:
(1)(
(2)(-1
(3)12.25×(-13.5)×(-40)×20;
(4)17.48×37+174.8×1.9+8.74×88.
参考答案
(1)原式=35-75-42
=-82;
(2)原式=32×43×54×65
=3;
(3)原式=(12.25×40)×(13.5×20)
=490×270
=132300;
(4)原式=17.48×37+17.48×1.9+17.48×44
=17.48×(37+19+44)
=17.48×100
=1748.
考点: