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Grade 5 Math · World 3: Division Junction · Level 24
Area Models for Division
Find a missing side with a 2-digit divisor.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 24
- Division can be a missing side. A rectangle has an area of 1,008, and one side is 12. What's the other side?
- Start with a friendly guess. 12 times 80 is 960. That leaves 48 of the area.
- 12 times 4 is 48, so nothing is left. The missing side is 80 plus 4.
Georgia's K-12 Mathematics Standards:
- 5.NR.2.2 — Fluently divide multi-digit whole numbers (up to 4-digit dividends and 2-digit divisors no greater than 25) to solve practical problems.