3rd Grade Math Vocab

Front

The answer to an addition problem is called a _______

Back

Sum

Front

Distance around a closed 2D figure is the ________

Back

perimeter

Front

The answer to a subtraction problem is called the _______

Back

difference

Front

Numbers that are added

Back

addends

Front

Worth of something

Back

value

Front

Reducing or increasing a number to the nearest 10, 100, etc., for easier use when exactness isn't needed.

Back

rounding

Front

An answer close to the exact value, e.g., 23 + 71 is about 100. What is this called?

Back

estimate

Front

Join or combine equal groups

Back

multiply

Front

What is multiplication?

Back

the operation used to combine equal groups

Front

A line going straight up

Back

vertical