Question

Find 852 using mental math

Answer 1

find 852?.. is there any sign?..

Answer 2

thats all i was told given

Answer 3

umm? I guess one way would be to look at the number, and separate it into 800+52 = 800+40+12 - can you think of a number that goes into all of those?

Answer 4

852 <=== i found it, it's right there!

Answer 5

mental math stuff like this?
http://olc.spsd.sk.ca/de/math1-3/p-mentalmath.html#master

Answer 6

OH

Answer 7

haha 85^2 makes a bigg differnce ;)

Answer 8

So you now it'll be somewhere in between 6400 (80^2) and 8100 (90^2)

Answer 9

~know

Answer 10

85^2, is what you should've written, for future referenec.

Answer 11

85^2 means 85 times 85

85
x 85

Answer 12

thanks all