Respuesta :

ShanelleCarter
Proof:
9+10=?
9 = 3x3
10= 5x2
3 (from 3x3) x 5 (from 5x2) = 15
3 (from 3x3) x 2 (from 5x2) = 6
15+6=21
Therefore 9+10=21

21 CONFIRMED
CodBo3
9+10=21 because you think different
3 times 3 equals 9
5 times 2 equals 10
multiply these t=numbers then add then you get 21