0.48×7.6+0.24×4.8用简便算法计算

分类: 作业答案 • 2021-12-19 12:02:18

问题描述：

答

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

答

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

答

0.48×7.6+0.24×4.8
=4.8x0.76+0.24x4.8
=4.8x(0.76+0.24)
=4.8