Question

doesn't 10 + 9 = 21

Really think about it

Answer 1

it actually does and yes im answering my own question

think of how you do it

9+10=21

just think it pretty simple all it basically is is

9 is a number made up of 3x3
10 is a number made up of 5 x 2
were am i going witht this
you will see
then after you basically divide the number you get 3x3 and 5x2
multiply 3x5 =15
and then 3x2 =6
theres your answer 15+6 equals 21

XP i got you guys so good

Answer 2

Go back to preschool

Answer 3

XD

Answer 4

i messed up order of operations lol

Answer 5

That doesn't make any sense whatsoever..

Answer 6

You might as well say it equals 90, because 10 * 9 = 90

Answer 7

swaggin out @iGreen