Add with base-ten models
~10 min
Show each number with hundreds, tens, and ones.
Modeling Addends with Place Value
124
Th
0
H
1
T
2
O
4
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.