0.48×7.6+0.24×4.8用简便算法计算

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0.48×7.6+0.24×4.8用简便算法计算

0.48×7.6+0.24×4.8用简便算法计算
0.48×7.6+0.24×4.8用简便算法计算

0.48×7.6+0.24×4.8用简便算法计算
0.48×7.6+0.24×4.8
=4.8x0.76+0.24x4.8
=4.8x(0.76+0.24)
=4.8

原式=0.24*15.2+0.24*4.8
=0.24*(15.2+4.8)
=0.24*20
=4.8

0.48*7.6+0.24*4.8
=(0.24*2)*7.6+0.24*4.8
=0.24*15.2+0.24*4.8
=0.24*(15.2+4.8)
=0.24*20
=4.8