Unit 2 5th Math Vocabulary Place Value

The symbols used to show numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

• comma

• digits

• tenth

• period

The value given to a digit by its place in a number.

• comma

• decimal

• place value

• standard form

A number that has a digit in the tenths place, hundredths place, and/or beyond. Example: 14.456

• decimal

• word form

• expanded form

• period

The usual way of writing a number that shows only its digits, no words.

Example: 23,908,321

• standard form

• expanded form

• decimal

• word form

A way to write a number using words.

Example: three thousand five hundred sixty-two.

• standard form

• place value

• word form

• expanded form

A way to write a number as the sum of the values of its digits. Example: 3,000 + 500 + 60 + 2

• word form

• standard form

• expanded form

• place value chart

The name given to each group of three digits in a place-value chart.

• decimal

• period

• comma

• digits

A symbol used to separate the periods in a number.

• decimal

• comma

• period

• place

One out of ten equal parts of a whole. The first place to the right of the decimal. Example: 12.4

• tenth

• hundredth

• decimal

• thousandth

One part of 100 equal parts of a whole. The second place to the right of the decimal point. Example: 13.46

• thousandth

• tenth

• hundredth

• digit