Number Sense (3.2A/3.2D)

Expanded notation is a way to write numbers that shows the value of each digit. For example, the number 297 can be written as (2x100) + (9x10) + (7x1).

297

Seven thousand, one hundred eighty-four.

Five hundred twenty-one.

50,098 is greater than 5,098 (50,098 > 5,098).

1,357.

Place value is the value of a digit based on its position in a number. For example, in the number 4,562, the 5 is in the hundreds place, so its value is 500.

The value of the digit 3 is 3,000.

2,000 can be written as (2x1,000).

Standard form is the way we write numbers using digits, while word form is how we write numbers using words.