=（3.75-0.5x4.5-1/3x4.5）÷1.35
=（3.75-2.25-1.5）÷1.35
=0÷1.35
=0
=（3.75-2.25-1.5）÷1.35
=0÷1.35
=0
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第1个回答 2017-04-07
=[3.75-(2.25+1.5)/1..35
=[3.75-3.75]/1.35
=0/1.35
=0
=[3.75-3.75]/1.35
=0/1.35
=0
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