11 91乘括号2⼀13-1⼀7括号怎样算?

2024-11-16 09:18:05
推荐回答(1个)
回答1:

91乘括号2/13-1/7括号怎样算?

运用乘法分配律使计算简便:

91×(2/13-1/7)
=91×2/13-91×1/7
=14-13
=1