We already know 100 — now let's keep going all the way to 120!
After 100 comes 101, 102, 103 … just like counting from 1, except we say "one hundred" before each number. After 109 comes 110, 111 … all the way to 120. The same pattern repeats!
Counting from 100 to 120:
A counting path from 110 to 120:
Each step adds 1. The last number on the path is 120!
...107, 108, 109 → 110! Just like 9 → 10, or 19 → 20, whenever the ones reach 9, the next number bumps up the tens.
What number comes after 119?
Remember This!
Count objects in groups of 10 and keep a tally. Ten groups of 10 = 100. Then keep counting one by one to reach 120!