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Grade 5 Math · World 4: Thousandths Dock · Level 37
Order Decimals
Order decimals, and see why longer doesn't mean bigger.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 37
- Boats sail in order of their cargo. Let's order 2.4, 2.35, and 2.409.
- Add zeros so they all have three digits. It doesn't change their value, and it makes them easy to line up.
- Now compare like whole numbers: 350, 400, and 409 thousandths.
- Beware the trap! 2.35 has more digits than 2.4, but it's less. Longer doesn't mean bigger.
Georgia's K-12 Mathematics Standards:
- 5.NR.4.2 — Represent, compare, and order decimal numbers to the thousandths place based on the meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.