Place-Value Chart

About the Place-Value Chart

A place value chart only does its job if students can see a number actually broken into its columns, not just told that it can be. Type any number up to four digits, with up to two decimal places, and this tool splits it into individual digit columns — thousands through ones, then tenths and hundredths when a decimal point is present — each labeled and showing what that single digit is worth.

The expanded form underneath turns the columns into the addition statement most place-value standards actually ask students to write, so the visual and the written skill reinforce each other on the same screen.

How to use it in your classroom

1. Type a number into the input box. Whole numbers up to four digits and decimals with up to two decimal places are both supported.
2. Read across the column chart — each digit appears under its place-value label (thousands, hundreds, tens, ones, and tenths/hundredths if applicable).
3. Check the value listed under each digit, which shows that digit multiplied by its place value.
4. Compare the expanded form at the bottom to the original number to confirm the breakdown adds back up correctly.

Tips from the classroom

• Start with a number that has a zero in one place (like 3,071) so students see that the chart still reserves a column for it rather than skipping it.
• Type a whole number first, then add a decimal point and a digit to the same number, so students see the tenths column appear and connect it to the existing pattern rather than treating decimals as an unrelated topic.
• Cover the expanded form and ask a student to write it from the chart alone, then reveal it as a self-check.
• Use back-to-back numbers that swap two digits (like 3,471 and 3,741) to highlight how position, not just which digits are present, determines a number's value.

Frequently asked questions