Subtract with base-ten models
3rd Grade Math practice: Subtract 402 - 185.. Part of add and subtract (Add and subtract).
~10 min
Show the starting number with base-ten blocks.
Representing Numbers with Blocks
345
Th
0
H
3
T
4
O
5
To subtract using base-ten models, first show the starting number by building it with hundreds flats, tens rods, and ones units.
💡 Always count the blocks you laid out to make sure they match the starting number.