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☆算术计算1题
〖1/1算式〗
作业:求算式 18.9*0.3*2+18.9*0.2*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2 的值.
题型:数学计算
解:
18.9*0.3*2+18.9*0.2*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=5.67*2+18.9*0.2*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+18.9*0.2*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+3.78*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+22.68+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+22.68+16.56*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+22.68+33.12+55.2*0.2*2+38.8*0.2*2+8.159*0.2
=11.34+22.68+33.12+11.04*2+38.8*0.2*2+8.159*0.2
=11.34+22.68+33.12+22.08+38.8*0.2*2+8.159*0.2
=11.34+22.68+33.12+22.08+7.76*2+8.159*0.2
=11.34+22.68+33.12+22.08+15.52+8.159*0.2
=11.34+22.68+33.12+22.08+15.52+1.6318
=34.02+33.12+22.08+15.52+1.6318
=67.14+22.08+15.52+1.6318
=89.22+15.52+1.6318
=104.74+1.6318
=106.3718 答案:18.9*0.3*2+18.9*0.2*6+55.2*0.3*2+55.2*0.2*2+38.8*0.2*2+8.159*0.2=106.3718你的问题在这里没有得到解决?请到 热门难题 里面看看吧!