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Decomposing Area

Authored by Anthony Clark

Mathematics

4th Grade

CCSS covered

Used 1+ times

Decomposing Area
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the total area of the pink model?

3 units squared

4 units squared

7 units squared

12 units squared

Tags

CCSS.3.MD.C.6

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Rhys wants to plant a garden. The drawing on the grid below represents the shape of the garden he wants to plant. What is the total area of the garden Rhys wants to plant?

15 square feet

45 square feet

100 square feet

60 square feet

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Ms. Olivo put two rectangular tables together. The length and width of each table is shown in feet in the model below. What is the total area of the top of the tables put together?

18 square feet

36 square feet

54 square feet

90 square feet

Tags

CCSS.3.MD.C.7D

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the area of the figure shown.
*HINT: There are 2 figures here! How could you find the total area? 
1. Find the area of the rectangle
2. Find the area of the triangle
3. Add the areas together!

34 units2

960 units2

220 units2

480 units2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the area of the composite figure.

19 square cm

30 square cm

29 square cm

45 square cm

Tags

CCSS.3.MD.C.7D

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Jada said that she found the area of figure A by cutting it into 3 rectangles, finding their separate areas, and then adding those areas. Which strategy best describes what Jada did?

decomposing and rearranging

decomposing

enclosing and subtracting

counting grid squares

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Mai found the area of figure D by cutting the shape in half, moving the smaller triangles together, and making a new rectangle. Which strategy best describes what Mai did?

decomposing

enclosing and subtracting

decomposing and rearranging

Tags

CCSS.HSG.CO.C.11

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