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 1/2×4.56×((1.49×25)+(1.56×40)+(6.22×22)+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3)) 的值.
题型:数学计算
解:
1/2×4.56×((1.49×25)+(1.56×40)+(6.22×22)+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×(37.25+(1.56×40)+(6.22×22)+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×(37.25+62.4+(6.22×22)+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×(37.25+62.4+136.84+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×(37.25+62.4+136.84+655.8+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×(37.25+62.4+136.84+655.8+1375)+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×2267.29+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))
=1/2×4.56×2267.29+0.75×0.8×1.54×(400+1.5×8×42.2)
=1/2×4.56×2267.29+0.75×0.8×1.54×906.4
=0.5×4.56×2267.29+0.75×0.8×1.54×906.4
=2.28×2267.29+0.75×0.8×1.54×906.4
=5169.4212+0.75×0.8×1.54×906.4
=5169.4212+0.6×1.54×906.4
=5169.4212+0.924×906.4
=5169.4212+837.5136
=6006.9348 答案:1/2×4.56×((1.49×25)+(1.56×40)+(6.22×22)+(10.93×60)+(25×55))+0.75×0.8×1.54×(400+1.5×8×(20.2+25-3))=6006.9348你的问题在这里没有得到解决?请到 热门难题 里面看看吧!