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☆算术计算1题
〖1/1算式〗
作业:求算式 2.5×10^(-3)-(-0.00070×4.0)+1.327×10^(-3)+2.655×10^(-3) 的值.
题型:数学计算
解:
2.5×10^(-3)-(-0.00070×4.0)+1.327×10^(-3)+2.655×10^(-3)
=2.5×10^(-3)-(-0.00070×4.0)+1.327×10^(-3)+2.655×10^(-3)
=2.5×10^-3-(-0.0028)+1.327×10^(-3)+2.655×10^(-3)
=2.5×10^-3-(-0.0028)+1.327×10^(-3)+2.655×10^(-3)
=2.5×10^-3-(-0.0028)+1.327×10^-3+2.655×10^(-3)
=2.5×0.001-(-0.0028)+1.327×10^(-3)+2.655×10^(-3)
=2.5×0.001-(-0.0028)+1.327×0.001+2.655×10^(-3)
=2.5×0.001-(-0.0028)+1.327×0.001+2.655×0.001
=0.0025-(-0.0028)+1.327×0.001+2.655×0.001
=0.0025--0.0028+0.001327+2.655×0.001
=0.0025--0.0028+(0.001327)+0.002655
=0.0053+0.001327+0.002655
=0.006627+0.002655
=0.009282 答案:2.5×10^(-3)-(-0.00070×4.0)+1.327×10^(-3)+2.655×10^(-3)=0.009282你的问题在这里没有得到解决?请到 热门难题 里面看看吧!