9.8*0.1+0.5*98.1+0.049*981怎样计算简便_数学解答

9.8*0.1+0.5*98.1+0.049*981怎样计算简便

人气：132 ℃　时间：2020-05-02 06:32:25

解答

9.81*0.1+0.5*98.1+0.049*981
=9.81*0.1+5*9.81+4.9*9.81
=9.81*(0.1+5+4.9)
=9.81*10
=98.1