Place value to millions
Read and write the value of a digit in numbers up to the millions place.
Objective
Read and write the value of a digit in numbers up to the millions place.
What it means
Place value is the value a digit holds because of its position in a number. Each place is ten times the place to its right.
See it
Use this model while you read. Move it around to see what the math is doing.
The point is on 6. Jumps of 2.
Key terms
- Place
- A digit's position in a number (ones, tens, hundreds, ...).
- Period
- A group of three digits separated by commas (ones, thousands, millions).
- Expanded form
- Writing a number as the sum of the value of each digit.
Rules to remember
- Each place to the left is 10 times the one before it.
- Commas separate periods of three digits, starting from the right.
Step by step
- 1Locate the digitCount places from the right: ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions.
- 2Multiply by place valueMultiply the digit by the value of its place to find its worth.
Common mistakes
- Confusing a digit's face value with its place value.
- Miscounting places when a number has many digits.
Tips
- Say the number aloud, breaking it into groups of three (millions, thousands, ones).