简便计算9.8*2.4+4.8*0.
问题描述:
简便计算9.8*2.4+4.8*0.
答
9.8*2.4+4.8*0.1
=9.8×2.4+2.4×0.2
=2.4×(9.8+0.2)
=2.4×10
=24