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72X27十72X72十72竖式计算,怎

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原式 =24x72+12x56 =24x72+12x2x28 =24x72+24x28 =24x(72+28) =24x100 =2400

35x27+35x72+35 =35x(27+72+1) =35x100 =3500

25x72+28x50 =25x72+56x25 =25x(72+56) =25x128 =25x4x32 =3200

272x72十72x28 =(272+28)x72 =300x72 =21600

=46x7.2十46x2.8 =46x(7.2+2.8) =46x10 =460 希望能帮到你,请采纳正确答案,点击【采纳答案】,谢谢 ^_^ 你的点赞或采纳是我继续帮助其他人的动力!

35x16十35x72十35x12 =35x(16+72+12) =35x100 =3500

=6.28x72+6.28x28 =6.28x(72+28)=6.28x100 =628

乘法的交换律 请采纳,你的采纳是我上进的动力!可以追问,一直到懂!!

3333x72十2222x92=1111x3 x 72十1111x2x92=1111x(3 x 72十2x92)=1111x400=444400

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