2006-09-18 12:46:39 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
81
2006-09-18 12:48:16 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
81
2006-09-18 21:15:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Its always best to learn how to do things for yourself instead of relying on others.
Here's a trick I use to do math in my head.
I multiply a number that's close to what I want. In this case 30 is close to 27.
30 x 3 is easy. 90
But, 30 is 3 off from 27, so we need to take some away.
3 x 3 is also easy. 9
So, we take 9 away from 90 and get 81.
2006-09-18 12:56:20 · answer #3 · answered by Zim 3 · 4⤊ 0⤋
27x3 is eaquil to 27+27+27 which eaquils 81
2006-09-18 12:54:15 · answer #4 · answered by ♪~♥~♫~♥~♪ 3 · 1⤊ 0⤋
27x3 is 81
2006-09-18 12:49:21 · answer #5 · answered by Mrmann 2 · 0⤊ 0⤋
81.
Ever hear of a calculator? Or in this particular case, paper and pencil?
2006-09-18 12:54:09 · answer #6 · answered by Anonymous · 0⤊ 3⤋
27x3
2017-01-09 17:35:20 · answer #7 · answered by ? 4 · 0⤊ 0⤋
My friend...two options: (1) time to get back to Third grade or (2)investing in a calculator...your pick.
2006-09-18 12:57:58 · answer #8 · answered by alrivera_1 4 · 0⤊ 1⤋
81 why didn't you use the calculator on your computer?
2006-09-18 12:54:48 · answer #9 · answered by crazygirllvsn8 3 · 0⤊ 1⤋
i think it has something to do with mathematics, chief.
2006-09-18 12:49:22 · answer #10 · answered by joe 3 · 1⤊ 1⤋