Unit 1 Math Vocabulary

An ordered set of numbers or objects in which the order will help you predict what will come next

• Sum

• Pattern

• Associative Property of Addition

• Commutative Property of Addition

• Difference

The answer to an addition problem

• Sum

• Difference

• Estimate

• Round

• Identity Property of Addition

The property that states you can add two or more numbers in any order and still get the same sum.

• Compatible Numbers

• Associative Property of Addition

• Round

• Commutative Property of Addition

• Identity Property of Addition

to replace a number with another number that tells you about how much or about how many

• Compatible Numbers

• Estimate

• Sum

• Round

• Difference

an answer that is close to an exact amount; to find out about how many or how much

• Round

• Compatible Numbers

• Sum

• Estimate

• Difference

numbers that are easy to compute mentally and are close to the real numbers

• Compatible Numbers

• Difference

• Sum

• Estimate

• Round

The property that states that when you add zero to a number, the result is that number

• Identity Property of Addition

• Commutative Property of Addition

• Compatible Numbers

• Associative Property of Addition

• Pattern

The answer to a subtraction problem

• Pattern

• Sum

• Difference

• Estimate

• Round

the property that states you can group addends in different ways and still get the same sum

• Identity Property of Addition

• Commutative Property of Addition

• Compatible Numbers

• Associative Property of Addition

• Pattern