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Grade 4 Math · World 1: Place Value Peaks · Level 4
Expanded Form
Write 305,420 as 300,000 + 5,000 + 400 + 20, and back again.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 4
- Expanded form shows what each digit is worth, added together.
- 305,420 has 3 hundred thousands, 0 ten thousands, 5 thousands, 4 hundreds, 2 tens, and 0 ones. The zeros don't need a part.
- To go back, put each part in its place. 70,000 plus 600 plus 8 is 70,608. The empty places get zeros!
Georgia's K-12 Mathematics Standards:
- 4.NR.1.1 — Read and write multi-digit whole numbers to the hundred-thousands place using base-ten numerals and expanded form.