(0.62+7.035÷20.1)÷0.25 需简便运算
1个回答
(0.62+7.035÷20.1)÷0.25
=(0.62+0.35)*4
=0.97*4
=(1-0.03)*4
=1*4-0.03*4
=4-0.12
=3.88
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