Math Topic 2: Addition and Subtraction Vocabulary Words

A mathematical phrase Example: 2+7 or x-3

A number sentence that uses the equal sign (=) to show that two expressions have the same value

The answer when subtracting two numbers

The sum of any number and zero is that number

The value of the variable that makes an equation true

Operations that undo each other For example, adding 6 and subtracting 6

The numbers that are added together to find a sum

A set of steps used to solve a math problem

To give an approximate value rather than an exact answer

Numbers can be added in any order and the sum remains the same

A symbol or letter that stands for a number

Addends can be regrouped and the sum remains the same

The result of adding numbers together