Place Value

Idea:

When 10 of the same value are collected, the place goes up.

After 9 comes 10.

10 ones = 1 ten

Example:

10 one-dollar bills = 10 dollars

10 ten-dollar bills = 100 dollars

10 hundred-dollar bills = 1,000 dollars

Example 1:

125

125 = 100 + 20 + 5

Example 2:

1,234

1,234 = 1,000 + 200 + 30 + 4