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 0.8×18+0.9×18.3+20.4×16.9+1.9×19.2+1×18+7.46×18.7+50 的值.
题型:数学计算
解:
0.8×18+0.9×18.3+20.4×16.9+1.9×19.2+1×18+7.46×18.7+50
=14.4+0.9×18.3+20.4×16.9+1.9×19.2+1×18+7.46×18.7+50
=14.4+16.47+20.4×16.9+1.9×19.2+1×18+7.46×18.7+50
=14.4+16.47+344.76+1.9×19.2+1×18+7.46×18.7+50
=14.4+16.47+344.76+36.48+1×18+7.46×18.7+50
=14.4+16.47+344.76+36.48+18+7.46×18.7+50
=14.4+16.47+344.76+36.48+18+139.502+50
=30.87+344.76+36.48+18+139.502+50
=375.63+36.48+18+139.502+50
=412.11+18+139.502+50
=430.11+139.502+50
=569.612+50
=619.612 答案:0.8×18+0.9×18.3+20.4×16.9+1.9×19.2+1×18+7.46×18.7+50=619.612你的问题在这里没有得到解决?请到 热门难题 里面看看吧!