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  • 求4道數(shù)學(xué)題的簡(jiǎn)便運(yùn)算答案

    求4道數(shù)學(xué)題的簡(jiǎn)便運(yùn)算答案
    (3.6×0.75×1.2)÷(1.5×24×0.18)
    26.44÷0.4+13.22+1.8
    26.39×36+26.39×83-263.9×1.9
    2.25×0.16+264×0.0225+52×2.25+0.225×2
    數(shù)學(xué)人氣:962 ℃時(shí)間:2020-09-06 05:41:16
    優(yōu)質(zhì)解答
    3.6×0.75×1.2)÷(1.5×24×0.18)
    =(1.8×2×0.75×12÷10)÷(1.5×24×0.18)
    =(1.8×1.5×12÷10)÷(1.5×24×0.18)
    =0.5
    26.44÷0.4+13.22+1.8
    =13.22×2÷4×10+13.22+1.8
    =13.22×5+13.22+1.8
    =13.22×6+1.8
    =79.32+1.8=81.12
    26.39×36+26.39×83-263.9×1.9
    =26.39×36+26.39×83-26.39×19
    =26.39×(36+83-19)
    =26.39×100
    =2639
    2.25×0.16+264×0.0225+52×2.25+0.225×2
    =2.25×0.16+2.64×2.25+52×2.25+2.25×0.2
    =2.25×(0.16+2.64+52+0.2)
    =2.25×55
    =2.25×50+2.25×5
    =112.5+1.125
    =123.75
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