## Place Value Chart

**Key Terms:**

Standard Form: A way to write digits (ex: 1,358)

Expanded Form: A way to write numbers by showing the value of each digit (ex: 1,000+300+50+8)

Word Form: A way to write numbers using words (ex: One thousand, three hundred fifty-eight)

## Rounding

**Whole Number Rounding:**

Rounding allows us to decide whether we need to increase or decrease a number to the next digit.

The "messenger" is the number that sends a message to the "king" (place value to be rounded), and determines whether the king should increase by one or stay the same.

Hefty Messengers: The numbers 5,6,7,8,9. Tells the king to increase by one, and all the numbers after become 0.

Wimpy Messengers: The numbers 0,1,2,3,4. Tells the kind to stay the same, and all the numbers after become 0.