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306x24简便计算列脱式计算.

125x30x24 =125x30x(8*3) =125*8*3*30 =1000*90 =90000

74x14+111x24 =74x14+111x(10+14) =14x(74+111)+111x10 =14x185+111x10 =2590+1110 =3700

方法一: 解:24x24/25 =(25-1)x24/25……把24转化成25-1 =25x24/25-1x24/25……运用乘法分配率 =24-24/25 =23又1/25 方法二: 解:24x24/25 =24x(1-1/25)……把24/25转化成1-1/25 =24x1-24x1/25……运用乘法分配律 =24-24/25 =23又1/25

10又11/12x24等于脱式计算 10又11/12x24 =24*(10+11/12) =24*10+24*11/12 =240+22 =262

41600÷128x24 =325×24 =7800

=387(24+75+1) =387*100 =38700

原式=576÷12一15X24÷12 =48一15X2 =48一30 =18

136+295+(30+6)x(30-6)=136+295+30²-6²=136+295+900-36=1295 希望可以帮到你,望采纳

(17X28-400)X24 =(17X30-17X2-400)X24 =(510-400-34)X24 =(110-40+6)X24 =76X24 =80X24-4X24 =1920-96 =1920-100+4 =1824

50-50×24÷80 =50-1200÷80 =50-15 =35

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