Hey Everyone,
My first post here. Just started studying for the GMAT and am finding this site very useful.
Wanted to share with you all a tiny trick that I learned today that's very simple.
It might be common knowledge, but I just heard about it. Goes like this:
When multiplying a two digit number by 11 you can add the values of the two digit number together and insert that value between the two digits for the answer.
43 x 11 =
[4+3] = 7
4 [insert value] 3 = 473
Looks like it only works when the combined values are less than 10 though.
My first post here. Just started studying for the GMAT and am finding this site very useful.
Wanted to share with you all a tiny trick that I learned today that's very simple.
It might be common knowledge, but I just heard about it. Goes like this:
When multiplying a two digit number by 11 you can add the values of the two digit number together and insert that value between the two digits for the answer.
43 x 11 =
[4+3] = 7
4 [insert value] 3 = 473
Looks like it only works when the combined values are less than 10 though.
