##### PACE - Grade 4 - Vocabulary - Ch. 3

factor

numbers that are multiplied together to obtain a product

multiple

the product of a specific number and a whole number

commutative property

order doesn't matter

a x b = b x a

2 x 3 = 3 x 2

associative property

grouping doesn't matter

(a x b) x c = a x (b x c)

(2 x 3) x 7 = 2 x (3 x 7)

identity property

value doesn't change

a x 1 = a

36 x 1 = 36

distributive property

break down the numbers

(a + b) x c = (a x c) + (b x c)

36 x 5 = (30 x 5) + (6 x 5)

zero property

anything multiplied by zero equals zero

a x 0 = 0

3 x 0 = 0

benchmark numbers

numbers that are simple to work with, such as 10, 50, 100, 500, 1000, etc.

common multiple

a non-zero number that is a multiple of two or more different numbers

LCM - Least Common Multiple

the lowest non-zero number that is a multiple of two or more different numbers

compatible numbers

numbers that are easy to work with mentally

GCF - Greatest Common Factor

the greatest number that is a factor of each of two or more numbers

product

the number that is the result of multiplying two or more factors