23 terms

fact family

a set of related multiplication and division facts using the same numbers

commutative property of multiplication

numbers can switch places and the product stays the same

associative property of multiplication

how numbers are grouped doesn't matter and the product stays the same

do work in parentheses

first

identity property of multiplication

product of any number and one is that number

zero property of multiplication

product of any number and zero is zero

divisibility rules of one a

any number divided by one equals itself

divisibility rules of one b

any number divided by itself equals one except zero

divisibility rules of zero a

zero divided by any number equals zero

divisibility rules of zero b

you cannot divide any number by zero

commutative example

4x2=2x4

associative example

(2x4)x3=2x(4x3)

identity example

5x1=5

zero property of multiplication example

60x0=0

divisibility rules of one a example

10÷1=10

divisibility rules of one b example

7÷7=1

divisibility rules of zero a example

0÷10=0

divisibility rules of zero b example

5÷0 doesn't work

factors

whole numbers that multiply evenly to equal a product

factor pairs

2 numbers that multiply together to equal a product

multiple

product of a number and any whole number (like counting by a number)

product

answer to a multiplication problem

quotient

answer to a division problem