3rd: Place Value Math Vocabulary

Front

What are put together to form a number?

Back

Digit

Front

are written 1 or more digits

Back

Number

Front

to put numbers together to create a larger number

Back

Compose

Front

to break numbers apart into smaller pieces

Back

Decompose

Front

Numbers as shown as a distance from zero

Back

Number Line

Front

to find the nearest ten, hundred, thousand, and so on to help estimate or check for reasonableness

Back

Round

Front

the “regular” way a number is written

Back

Standard form

Front

Digits and place values are written in words.

Back

Word form

Front

a way to write a number that shows the value of each digit

Back

Expanded form

Front

a way to write a number that shows the place value of each digit

Back

Expanded notation