Topic 1 Math Vocabulary

The value given to a place a digit has in a number.

• place value

• dollar sign

• expanded form

• digit

The symbols used to write the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.

• place value

• compare

• digits

• standard form.

A number written as the sum of the values of its digits. (ex. 200 + 10+ 5)

• standard form

• word form

• digits

• expanded form

A way to write a number showing only its digits. (ex. 469)

• standard form

• word form

• expanded form

• place value

A group of three digits in a number, separated by a comma.

• compare

• order

• period

• dollar sign

A number written in words. (ex. thirty-one)

• standard form

• word form

• expanded form

• round

When you arrange numbers from least to greatest or greatest to least.

• compare

• order

• number line

• round

When you decide if one number is greater than or less than another number. (ex. 99 > 88)

• compare

• order

• place value

• decimal point

The dot used to separate dollars from cents in money.

• dollar sign

• digits

• order

• decimal point

A symbol used to indicate money.

• decimal point

• number line

• round

• dollar sign