回复 suicide
不管你信不信,反正我信了
abc717717 发表于 2012-8-25 11:57 AM 
回复 suicide
哈哈。。那我也是其中一个笨蛋了。。答案是什么????
selinechua 发表于 2012-8-25 11:53 AM 
2x(2+1) not equal to 2(2+1)
2(2+1) is more priority than multiply divide.
as 2(2+1) you can further written as (4+2) which is more clear.
do the math:
6÷(1+2)=?
is you say is 2,
6÷(3)=2
then u are doing two different type of math with stupid question above.
as 6÷(1+2)=
6÷1(1+2)=
6÷1x(1+2)= (don't know which idiot find this method)
6x(3)=18
which answer is correct? 2?18?