如题所述
2.5Ã4.8
=2.5*4*1.2
=12
2.5Ã4.8
=4.8*2+4.8*0.5
=9.6+2.4
=12
满æé纳奥
=2.5*4*1.2
=12
2.5Ã4.8
=4.8*2+4.8*0.5
=9.6+2.4
=12
满æé纳奥
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第1个回答 2016-09-14
2.5x4.8
=2.5x4x1.2
=10x1.2
=12
=2.5x4x1.2
=10x1.2
=12