Expanded Form

Write 347.392 as 3 × 100 + 4 × 10 + 7 × 1 + 3 × 1/10 + 9 × 1/100 + 2 × 1/1,000.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 35

Expanded form shows what each digit is worth. Let's take apart 347.392.
The whole number part is 3 times 100, plus 4 times 10, plus 7 times 1.
After the point, we use fractions. That's 3 times 1 tenth, plus 9 times 1 hundredth, plus 2 times 1 thousandth.
Put them together. Each digit times its place value, all added up, makes the number. A zero digit is worth nothing, so we can skip it.

Georgia's K-12 Mathematics Standards:

5.NR.4.1 — Read and write decimal numbers to the thousandths place using base-ten numerals written in standard form and expanded form.