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Common Core: 3rd Grade Math : Common Core Math: Grade 3

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

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All Common Core: 3rd Grade Math Resources

7 Diagnostic Tests 226 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #237 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

If the formula to find the area of the white section of the rectangle below is $9\times3$ , what is the formula to find that area of the purple section?

Screen shot 2015 11 04 at 3.54.29 pm

Possible Answers:

$9\times8$

$9\times7$

$7\times8$

$9\times6$

Correct answer:

$9\times6$

Explanation:

Both the purple section and the white section have the same length, $9\ units$ . The width of the purple section is $6\ units$ . Thus the area formula for the purple section of the rectangle is $9\times6$ .

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Example Question #1291 : Concepts

If the formula to find the area of the white side of the rectangle below is $9\times4$ , what is the formula to find that area of the purple side?

Screen shot 2015 11 04 at 3.56.07 pm

Possible Answers:

$8\times7$

$9\times7$

$9\times6$

$9\times5$

$8\times6$

Correct answer:

$9\times5$

Explanation:

Both the purple side and the white side have the same length, $9\ units$ . The width of the purple side is $5\ units$ . Thus the area formula for the purple side of the rectangle is $9\times5$ .

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Example Question #1771 : Common Core Math: Grade 3

If the formula to find the area of the white side of the rectangle below is $9\times5$ , what is the formula to find that area of the purple side?

Screen shot 2015 11 04 at 4.41.07 pm

Possible Answers:

$9\times5$

$8\times4$

$9\times4$

$8\times5$

$9\times6$

Correct answer:

$9\times4$

Explanation:

Both the purple side and the white side have the same length, $9\ units$ . The width of the purple side is $4\ units$ . Thus the area formula for the purple side of the rectangle is $9\times4$ .

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Example Question #240 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

If the formula to find the area of the white side of the rectangle below is $9\times7$ , what is the formula to find that area of the purple side?

Screen shot 2015 11 04 at 4.45.34 pm

Possible Answers:

$9\times2$

$7\times3$

$9\times3$

$7\times2$

$9\times9$

Correct answer:

$9\times2$

Explanation:

Both the purple side and the white side have the same length, $9\ units$ . The width of the purple side is $2\ units$ . Thus the area formula for the purple side of the rectangle is $9\times2$ .

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Example Question #3 : How To Find The Area Of A Rectangle

What is the area of the figure below?

Possible Answers:

47in^2

24in^2

35in^2

59in^2

52in^2

Correct answer:

59in^2

Explanation:

To find the area of the figure above, we need to split the figure into two rectangles.

12.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=7\times 5$ $A=6\times 4$

A=35in^2 A=24in^2

To find our final answer, we need to add the areas together.

35in^2+24in^2=59in^2

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Example Question #4 : How To Find The Area Of A Rectangle

What is the area of the figure below?

Possible Answers:

32in^2

22in^2

10in^2

12in^2

28in^2

Correct answer:

22in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles.

11.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=6\times 2$ $A=5\times 2$

A=12in^2 A=10in^2

To find our final answer, we need to add the areas together.

12in^2+10in^2=22in^2

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Example Question #5 : How To Find The Area Of A Rectangle

What is the area of the figure below?

Possible Answers:

40in^2

28in^2

18in^2

32in^2

14in^2

Correct answer:

32in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles.

10.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=7\times 2$ $A=6\times 3$

A=14in^2 A=18in^2

To find our final answer, we need to add the areas together.

14in^2+18in^2=32in^2

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Example Question #11 : How To Find The Area Of A Rectangle

What is the area of the figure below?

Possible Answers:

100in^2

96in^2

24in^2

72in^2

112in^2

Correct answer:

96in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles.

9.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=9\times 8$ $A=8\times 3$

A=72in^2 A=24in^2

To find our final answer, we need to add the areas together.

72in^2+24in^2=96in^2

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Example Question #3 : Find Areas Of Rectilinear Figures: Ccss.Math.Content.3.Md.C.7d

What is the area of the figure below?

Possible Answers:

24in^2

8in^2

32in^2

12in^2

28in^2

Correct answer:

32in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles.

8.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=4\times 6$ $A=4\times 2$

A=24in^2 A=8in^2

To find our final answer, we need to add the areas together.

24in^2+8in^2=32in^2

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Example Question #4 : Find Areas Of Rectilinear Figures: Ccss.Math.Content.3.Md.C.7d

What is the area of the figure below?

Possible Answers:

18in^2

9in^2

34in^2

25in^2

36in^2

Correct answer:

34in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles.

7.5

Using our area formula, $A=l\times w$ , we can solve for the area of both of our rectangles

$A=5\times 5$ $A=3\times 3$

A=25in^2 A=9in^2

To find our final answer, we need to add the areas together.

25in^2+9in^2=34in^2

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All Common Core: 3rd Grade Math Resources

7 Diagnostic Tests 226 Practice Tests Question of the Day Flashcards Learn by Concept

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Common Core: 3rd Grade Math : Common Core Math: Grade 3

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

All Common Core: 3rd Grade Math Resources

Example Questions

Example Question #237 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

Example Question #1291 : Concepts

Example Question #1771 : Common Core Math: Grade 3

Example Question #240 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

Example Question #3 : How To Find The Area Of A Rectangle

Example Question #4 : How To Find The Area Of A Rectangle

Example Question #5 : How To Find The Area Of A Rectangle

Example Question #11 : How To Find The Area Of A Rectangle

Example Question #3 : Find Areas Of Rectilinear Figures: Ccss.Math.Content.3.Md.C.7d

Example Question #4 : Find Areas Of Rectilinear Figures: Ccss.Math.Content.3.Md.C.7d

All Common Core: 3rd Grade Math Resources

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