Math Grade 3 Quiz Recognizing Area as Additive – 3.MD.C.7.D
This standard emphasizes the concept that area is additive. This means that we can determine the total area of a complex or irregular shape by breaking it down into simpler, non-overlapping rectangles. By calculating the area of each of these smaller rectangles separately and then summing them up, we can find the total area of the original shape. This method can be particularly useful in real-world situations where shapes are not always perfect squares or rectangles.
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Question 1 of 10
1. Question
If a rectilinear figure is divided into two rectangles, one with an area of 12 square units and the other with an area of 15 square units, what is the total area?
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Question 2 of 10
2. Question
A garden is shaped as a rectilinear figure and is divided into 3 sections. If the areas of the sections are 10, 20, and 30 square units respectively, what’s the total area of the garden?
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Question 3 of 10
3. Question
In a schoolyard, there’s a large irregular playground. If it’s divided into 4 non-overlapping rectangles with areas of 50, 50, 25, and 25 square units, how large is the playground?
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Question 4 of 10
4. Question
An art piece is made up of two non-overlapping rectangles. One rectangle has an area of 7 square units, and the other has 5 square units. What’s the total area of the art piece?
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Question 5 of 10
5. Question
A rectangular park is divided into 3 non-overlapping garden sections. If the garden sections have areas of 15, 25, and 30 square units, what’s the total area of the park?
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Question 6 of 10
6. Question
A complex tile design on a floor consists of 5 non-overlapping rectangles. If the rectangles have areas of 10, 10, 20, 30, and 30 square units, what’s the area of the tile design?
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Question 7 of 10
7. Question
A board game’s map is divided into 4 regions. If the regions are non-overlapping rectangles with areas of 12, 15, 18, and 20 square units, how large is the entire map?
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Question 8 of 10
8. Question
A swimming pool area includes 2 rectangular sections for kids and adults. The areas of the sections are 150 and 250 square units. What’s the total area?
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Question 9 of 10
9. Question
In a zoo, the lion’s enclosure is a rectilinear shape divided into 3 non-overlapping rectangles. If the areas of these sections are 80, 90, and 100 square units, how large is the enclosure?
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Question 10 of 10
10. Question
A building’s roof is shaped as a rectilinear figure. If the roof is divided into 3 rectangles with areas of 100, 200, and 300 square units, what is the total area?
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