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Area of Two Rectangles Joined is a free printable Grade 3 math worksheet on splitting a shape into two rectangles and adding their areas, aligned to Common Core standard 3.MD.C.7. It prints 6 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 21 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Area of Two Rectangles Joined

3.MD.C.7

NameDate

Work out each area. Show both parts.

1.Priya's patio is made of two rectangles side by side. One is 7 feet by 5 feet. The other is 6 feet by 3 feet. What is the total area?
Answer:
2.Zara's playground is made of two rectangles side by side. One is 4 feet by 3 feet. The other is 5 feet by 5 feet. What is the total area?
Answer:
3.Priya's garden is made of two rectangles side by side. One is 9 meters by 4 meters. The other is 6 meters by 4 meters. What is the total area?
Answer:
4.Noor's garden is made of two rectangles side by side. One is 5 feet by 8 feet. The other is 6 feet by 5 feet. What is the total area?
Answer:
5.Mei's playground is made of two rectangles side by side. One is 4 meters by 4 meters. The other is 4 meters by 4 meters. What is the total area?
Answer:
6.Freya's patio is made of two rectangles side by side. One is 8 feet by 8 feet. The other is 4 feet by 3 feet. What is the total area?
Answer:

LessonPrint · 3.MD.C.7 · Set 21 · free to copy for classroom use

Answer key — Area of Two Rectangles Joined

Set 21. Prints on its own sheet.

  1. 1.7 × 5 = 35; 6 × 3 = 18; 35 + 18 = 53 square feet
  2. 2.4 × 3 = 12; 5 × 5 = 25; 12 + 25 = 37 square feet
  3. 3.9 × 4 = 36; 6 × 4 = 24; 36 + 24 = 60 square meters
  4. 4.5 × 8 = 40; 6 × 5 = 30; 40 + 30 = 70 square feet
  5. 5.4 × 4 = 16; 4 × 4 = 16; 16 + 16 = 32 square meters
  6. 6.8 × 8 = 64; 4 × 3 = 12; 64 + 12 = 76 square feet

Last reviewed 2026-09-05. Aligned to 3.MD.C.7 of the Common Core State Standards for Mathematics.