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 3.8×(2×4.41+9.03)+69.98+2.18×(3.6-0.9)×(8.4-0.6)-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5 的值.
题型:数学计算
解:
3.8×(2×4.41+9.03)+69.98+2.18×(3.6-0.9)×(8.4-0.6)-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5
=3.8×17.85+69.98+2.18×(3.6-0.9)×(8.4-0.6)-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5
=3.8×17.85+69.98+2.18×2.7×(8.4-0.6)-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5
=3.8×17.85+69.98+2.18×2.7×7.8-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5
=3.8×17.85+69.98+2.18×2.7×7.8-4.86×(2.18-0.4)+3.926×6.4×0.5
=3.8×17.85+69.98+2.18×2.7×7.8-4.86×1.78+3.926×6.4×0.5
=67.83+69.98+2.18×2.7×7.8-4.86×1.78+3.926×6.4×0.5
=67.83+69.98+5.886×7.8-4.86×1.78+3.926×6.4×0.5
=67.83+69.98+45.9108-4.86×1.78+3.926×6.4×0.5
=67.83+69.98+45.9108-8.6508+3.926×6.4×0.5
=67.83+69.98+45.9108-8.6508+25.1264×0.5
=67.83+69.98+45.9108-8.6508+12.5632
=137.81+45.9108-8.6508+12.5632
=183.7208-8.6508+12.5632
=175.07+12.5632
=187.6332 答案:3.8×(2×4.41+9.03)+69.98+2.18×(3.6-0.9)×(8.4-0.6)-(2.7×1.8)×(2.18-0.4)+3.926×6.4×0.5=187.6332你的问题在这里没有得到解决?请到 热门难题 里面看看吧!