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 (20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.44))×0.6104-2×19×0.7813 的值.
题型:数学计算
解:
(20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.44))×0.6104-2×19×0.7813
=(20+17×2.1+18.5×3+18.6×5.1+19.1×0.46)×0.6104-2×19×0.7813
=214.846×0.6104-2×19×0.7813
=131.141998-2×19×0.7813
=131.141998-38×0.7813
=131.141998-29.6894
=101.452598 答案:(20+17×2.1+18.5×3+18.6×5.1+19.1×(1.9-1.44))×0.6104-2×19×0.7813=101.452598你的问题在这里没有得到解决?请到 热门难题 里面看看吧!