🏗️
Grade 3 Math · World 1: Thousand Builders · Level 1
Hundreds, Tens, and Ones
Read, write, and build three-digit numbers with base-ten blocks.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 1
- Welcome to Thousand Builders! Let's start with what you know: hundreds, tens, and ones.
- 347 has 3 hundreds, 4 tens, and 7 ones. Each digit's place tells what it's worth.
- In 347, the 4 is in the tens place, so it's worth 40, not 4.
- A zero holds a place. 506 has 5 hundreds, 0 tens, and 6 ones.
Georgia's K-12 Mathematics Standards:
- 3.NR.1.1 — Read and write multi-digit whole numbers up to 10,000 to the thousands using base-ten numerals and expanded form.