ALGEBRA
5x means 5 times X
2y means 2 times y
2y
+3=7, y=2
Any digit next to a letter means
MULTIPLICATION: 2X, 3A, 6N, 7G
Multiplication Properties
Commutative Property: 2 x 3= 3 x 2
Associative Property: (5 x 3) x 2= 5 x (3
x 2)
Zero Property: 3 x 0= 0
Identity Property: 12 x 1 = 12
Distributive Property: 12 x 22= Break 22
into two numbers
12 x (20 + 2)
(12 x 20) + (12 x 2)
240 + 24
264 Viola!