3.8*43.7+4.12*38+151*0.38 简算!
问题描述:
3.8*43.7+4.12*38+151*0.38 简算!
答
3.8×43.7+4.12×38+151×0.38
=38×4.37+38×4.12+38×1.51
=38×﹙4.37+4.12+1.51﹚
=38×10
=380