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Grade 4 Math · World 3: Multiplication Mill · Level 27
Area Models
Split 7 × 16 into 7 × 10 + 7 × 6.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 27
- An area model is a rectangle that shows multiplying. 7 times 16 is a rectangle 7 tall and 16 wide.
- Split 16 into 10 and 6, by place value. Now there are two smaller rectangles: 7 times 10, and 7 times 6.
- 7 times 10 is 70, and 7 times 6 is 42. Add the parts: 70 plus 42 is 112.
Georgia's K-12 Mathematics Standards:
- 4.NR.2.3 — Solve relevant problems involving multiplication of a number with up to four digits by a 1-digit whole number or involving multiplication of two two-digit numbers using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.