Adding and Subtracting Addends

Which vocabulary word is the numbers you add together?

• addition

• addends

• subtrahends

Which is an example showing addends in red?

• 6-2=4

• 9+1=10

• 2x8=16

• 4 dogs

What is an example of sum?

• 8-2=6

• 12x0=0

• 2 boys ran into the woods.

• 4+5=9

Addends that can be regrouped and the sum remains the same

• commutative property of addition

• expression

• associative property of addition

• inverse operations

A number that is added to another number

• exponent

• difference

• equivalent

• addend

The order of addends can be changed and the sum remains the same

• equivalent decimals

• associative property of addition

• commutative property of addition

• powers of 10

the result of adding one number to another

• sum

• difference

• associative property of addition

• commutative property of addition

The numbers that are added together in an addition problem are called _________________.

• factors

• multiples

• addends

• estimates

In the equation 9 + 7 = 16, 9 and 7 are called __________________.

• multiples

• sum

• factors

• addends

When you bring two or more numbers (things) together to make a new total that is called _________________.

• rounding

• adding

• estimating

• subtracting