Ch 9 math vocabulary

Associative property of multiplication

• Changing the grouping of factors does not change the product

• Multiplying numbers

• Dividing number

Distributive property of multiplication

• Evaluate problems

• allows you to decompose one factor into addends that is easier to multiply

• Expression of numbers

Equation

• Numbers subtracted

• Numbers added together

• Sentence with an equal sign showing that two expressions are equal ( 3x7=21)

Evaluate

• Find the value of an expression

• Adding numbers

• Multiplying numbers

Expression

• Happy numbers that add

• Saying If you’re happy about math or not

• Combination of numbers and operations to represent a quantity. Doesn’t have a equal sign (3x7)

Operations

• math That operates

• Math that is hard

• Math process which includes addition,subtraction,multiplication, division

Variable

• Letter or symbol in a math problem that represents an unknown quantity ( 3xa= 21. a= 7. (a) is the variable

• Math that varies

• Math problem with no answer