88.4*2.5-22.4/0.4简便运算

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88.4*2.5-22.4/0.4简便运算
88.4*2.5-22.4/0.4简便运算

88.4*2.5-22.4/0.4简便运算
88.4*2.5-22.4/0.4
=88.4*2.5-22.4÷2/5
=88.4*2.5-22.4*2.5
=(88.4-22.4)*2.5
=60*2.5
=150

88.4*2.5-22.4/0.4=88.4*2.5-22.4*2.5=2.5*(88.4-22.4)=2.5*66=5*33=165

原式=88.4*2.5-22.4*2.5=(88.4-22.4)*2.5=150