πagarwalmath · 3rd grade · Common Core 3.MD.C.7c
🧱 Area models
Area and multiplication (tiling, side lengths, splitting shapes)
Name: ______________________Date: ____________
1The whole rectangle is 9 × 10 = 90. It is split into two parts. What is the missing side?
Answer: ______________
2The rectangle is 9 by 5 + 3. What is the area of the whole rectangle?
Answer: ______________
3The whole rectangle is 3 × 9 = 27. It is split into two parts. What is the missing side?
Answer: ______________
4The whole rectangle is 7 × 7 = 49. It is split into two parts. What is the missing side?
Answer: ______________
5The rectangle is 9 by 5 + 2. What is the area of the whole rectangle?
Answer: ______________
6The whole rectangle is 8 × 9 = 72. It is split into two parts. What is the missing side?
Answer: ______________
7The whole rectangle is 7 × 7 = 49. It is split into two parts. What is the missing side?
Answer: ______________
8The whole rectangle is 9 × 7 = 63. It is split into two parts. What is the missing side?
Answer: ______________
9The whole rectangle is 9 × 9 = 81. It is split into two parts. What is the missing side?
Answer: ______________
10The whole rectangle is 8 × 10 = 80. It is split into two parts. What is the missing side?
Answer: ______________
11The rectangle is 9 by 2 + 7. What is the area of the whole rectangle?
Answer: ______________
12The whole rectangle is 5 × 9 = 45. It is split into two parts. What is the missing side?
Answer: ______________
Answer key: Area models
- 1. 3
- 2. 72
- 3. 4
- 4. 5
- 5. 63
- 6. 4
- 7. 2
- 8. 3
- 9. 4
- 10. 3
- 11. 81
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/area-models