7.7×7+7.7+2×7.7 简便方法计算 125除以(50除以8) ,简便方法计算

2025-01-31 22:46:44
推荐回答(5个)
回答1:

7.7×7+7.7+2×7.7
=7.7×(7+1+2)
=7.7×10
=77
125÷(50÷8)
=125÷50×8
=125×8÷50
=1000÷50
=20

回答2:

7.7*(7+2+1)=7.7*10=77 125除以50乘以8=125乘以8除以50=1000除以50=20

回答3:

7.7×(7+1+2)=7.7×10=77

回答4:

(7+2+1)×7

回答5:

7.7*(7+1+2)=77;