9.81*0.1+0.5*98.1+0.049*981的简便计算
问题描述:
9.81*0.1+0.5*98.1+0.049*981的简便计算
答
9.81*0.1+0.5*98.1+0.049*981
=9.81*(0.1+5+4.9)
=9.81*10
=98.1