(2⼀3-3⼀4+1⼀12-5⼀6)*(-12) 简便计算

-3×(-4⼀7)+2又2⼀7×(-3)+1⼀7×(-3) 简便计算
2024-11-17 14:33:23
推荐回答(2个)
回答1:

(2/3-3/4+1/12-5/6)*(-12)
=-2/3x12+3/4x12-1/12x12+5/6x12
=-8+9-1+10
=10

-3×(-4/7)+2又2/7×(-3)+1/7×(-3)
=3x(4/7-2-2/7-1/7)
=3x-13/7
=-39/7

回答2:

(2/3-3/4+1/12-5/6)*(-12)