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 18.9*0.3*2+18.9*0.2*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2 的值.
题型:数学计算
解:
18.9*0.3*2+18.9*0.2*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2
=5.67*2+18.9*0.2*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2
=11.34+18.9*0.2*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2
=11.34+3.78*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2
=11.34+41.58+55.2*0.3*2+55.2*0.2*4+3.7*0.2
=11.34+41.58+16.56*2+55.2*0.2*4+3.7*0.2
=11.34+41.58+33.12+55.2*0.2*4+3.7*0.2
=11.34+41.58+33.12+11.04*4+3.7*0.2
=11.34+41.58+33.12+44.16+3.7*0.2
=11.34+41.58+33.12+44.16+0.74
=52.92+33.12+44.16+0.74
=86.04+44.16+0.74
=130.2+0.74
=130.94 答案:18.9*0.3*2+18.9*0.2*11+55.2*0.3*2+55.2*0.2*4+3.7*0.2=130.94你的问题在这里没有得到解决?请到 热门难题 里面看看吧!