总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 (30+17.5×2.5+16.8×1.5+19.3×7.0+17.8×1.5-(12.5-0.85)×10)×0.33-2×6.7×0.57+(12.5-0.85)×10 的值.
题型:数学计算
解:
(30+17.5×2.5+16.8×1.5+19.3×7.0+17.8×1.5-(12.5-0.85)×10)×0.33-2×6.7×0.57+(12.5-0.85)×10
=(30+17.5×2.5+16.8×1.5+19.3×7.0+17.8×1.5-11.65×10)×0.33-2×6.7×0.57+(12.5-0.85)×10
=144.25×0.33-2×6.7×0.57+(12.5-0.85)×10
=144.25×0.33-2×6.7×0.57+11.65×10
=47.6025-2×6.7×0.57+11.65×10
=47.6025-13.4×0.57+11.65×10
=47.6025-7.638+11.65×10
=47.6025-7.638+116.5
=39.9645+116.5
=156.4645 答案:(30+17.5×2.5+16.8×1.5+19.3×7.0+17.8×1.5-(12.5-0.85)×10)×0.33-2×6.7×0.57+(12.5-0.85)×10=156.4645你的问题在这里没有得到解决?请到 热门难题 里面看看吧!