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 155×(2.55+3.75+3.35+2.95)+1/2×52.7×1.95×2.6+1/2×52.7×11×2.75 的值.
题型:数学计算
解:
155×(2.55+3.75+3.35+2.95)+1/2×52.7×1.95×2.6+1/2×52.7×11×2.75
=155×12.6+1/2×52.7×1.95×2.6+1/2×52.7×11×2.75
=1953+1/2×52.7×1.95×2.6+1/2×52.7×11×2.75
=1953+0.5×52.7×1.95×2.6+1/2×52.7×11×2.75
=1953+26.35×1.95×2.6+1/2×52.7×11×2.75
=1953+51.3825×2.6+1/2×52.7×11×2.75
=1953+133.5945+1/2×52.7×11×2.75
=1953+133.5945+0.5×52.7×11×2.75
=1953+133.5945+26.35×11×2.75
=1953+133.5945+289.85×2.75
=1953+133.5945+797.0875
=2086.5945+797.0875
=2883.682 答案:155×(2.55+3.75+3.35+2.95)+1/2×52.7×1.95×2.6+1/2×52.7×11×2.75=2883.682你的问题在这里没有得到解决?请到 热门难题 里面看看吧!