1.简便运算 15.3乘0.83+0.53乘8.3=( ) 6.5除1.25除8=( )

2025-06-27 04:47:14
推荐回答(1个)
回答1:

15.3*0.83+0.53*8.3
=1.53*8.3+0.53*8.3
=(1.53+0.53)*8.3
=2.06*8.3
=17.098
6.5\1.25\8
=6.25\(1.25*8)
=6.25\10
=0.625