Chapter 2 Math Vocabulary

The ___________________ states that for any number plus zero, zero plus the number is that number. 12+0=12.

• Associative Property

• Identity Property

• Identity Property

• Rental Property

An __________________ is an amount whose value needs to be found.

• equation

• unknown

• greater than

• less than

The ___________________ Property states that the order in which two numbers are added together does not change the sum. 5+6=6+5

• Associative

• Identity

• Commutative

• Rental

The first number in a subtraction sentence from which a second number is to be subtracted is the _________________.

• minuend

• difference

• subtrahend

• sum

The ________________________ Property states that groupoing of the addends does not change the sum.

(4+5)+10 = 4+(5+10)

• Commutative

• Identity

• Rental

• Associative

A number subtracted from another number is called the _________________.

• minuend

• difference

• sum

• subtrahend

A ____________________ is a symbol, usually a letter, that is used to represent an unknown amount.

• variable

• equal sign

• multiplication sign

• number

A ____________________ is a number sentence that contains an equal sign.

• word problem

• equation

• unknown

• variable

500- 256 = ______________. Should you regroup to find the difference? 

• yes

• no

5,675-1,221 = _____________. Should I regroup to find the difference?

• yes

• no