Add with base-ten models

~10 min

Show each number with hundreds, tens, and ones.

Modeling Addends with Place Value

124
1 hundred
2 tens
4 ones

To add numbers, first represent each addend separately using base-ten blocks. You use hundreds flats, tens rods, and ones cubes to show the value of each digit in the numbers.

💡 Always count your hundreds, tens, and ones for each number before you start adding.