Common Core: 4th Grade Math : Recognize Angle Measure as Additive: CCSS.Math.Content.4.MD.C.7

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #11 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

Solve for x. 

180 degrees

Possible Answers:

\displaystyle 85^\circ

\displaystyle 100^\circ

\displaystyle 90^\circ

\displaystyle 95^\circ

\displaystyle 80^\circ

Correct answer:

\displaystyle 90^\circ

Explanation:

The angle is a straight line. A straight line is \displaystyle 180^\circ. To find the missing angle we subtract. 

\displaystyle 180-90=90

Example Question #1041 : Ssat Elementary Level Quantitative (Math)

Solve for x. 

150 degrees

Possible Answers:

\displaystyle 80^\circ

\displaystyle 60^\circ

\displaystyle 70^\circ

\displaystyle 40^\circ

\displaystyle 50^\circ

Correct answer:

\displaystyle 60^\circ

Explanation:

To find the value of x we subtract. 

\displaystyle 150-90=60

Example Question #1042 : Ssat Elementary Level Quantitative (Math)

Solve for x. 

65 degrees

Possible Answers:

\displaystyle 50^\circ

\displaystyle 30^\circ

\displaystyle 35^\circ

\displaystyle 40^\circ

\displaystyle 45^\circ

Correct answer:

\displaystyle 35^\circ

Explanation:

To find the value of x we subtract. 

\displaystyle 65-30=35

Example Question #12 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

Solve for x. 

145degrees

Possible Answers:

\displaystyle 100^\circ

\displaystyle 110^\circ

\displaystyle 95^\circ

\displaystyle 90^\circ

\displaystyle 85^\circ

Correct answer:

\displaystyle 100^\circ

Explanation:

To find the value of x we subtract. 

\displaystyle 145-45=100

Example Question #826 : Operations

Solve for x. 

130degrees

Possible Answers:

\displaystyle 40^\circ

\displaystyle 45^\circ

\displaystyle 60^\circ

\displaystyle 55^\circ

\displaystyle 50^\circ

Correct answer:

\displaystyle 50^\circ

Explanation:

To find the value of x we subtract. 

\displaystyle 130-80=50

Example Question #12 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

Solve for x. 

45degrees

Possible Answers:

\displaystyle 30^\circ

\displaystyle 35^\circ

\displaystyle 50^\circ

\displaystyle 40^\circ

\displaystyle 45^\circ

Correct answer:

\displaystyle 45^\circ

Explanation:

Because of the square in the corner of the angle we have a \displaystyle 90^\circ angle. To find the missing piece of the angle we subtract. 

\displaystyle 90-45=45

Example Question #13 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

Solve for x. 

52degrees

Possible Answers:

\displaystyle 32^\circ

\displaystyle 36^\circ

\displaystyle 34^\circ

\displaystyle 30^\circ

\displaystyle 38^\circ

Correct answer:

\displaystyle 38^\circ

Explanation:

To solve for x we subtract. 

\displaystyle 90-52=38

Example Question #14 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

Solve for x. 

75degrees

Possible Answers:

\displaystyle 55^\circ

\displaystyle 40^\circ

\displaystyle 45^\circ

\displaystyle 60^\circ

\displaystyle 50^\circ

Correct answer:

\displaystyle 50^\circ

Explanation:

To solve for x we subtract. 

\displaystyle 75-25=50

Example Question #21 : Geometric Measurement: Understand Concepts Of Angle And Measure Angles

If we wanted to make this angle into a right angle, how many more degrees would we need to add? 

27degrees

Possible Answers:

\displaystyle 67^\circ

\displaystyle 65^\circ

\displaystyle 64^\circ

\displaystyle 66^\circ

\displaystyle 63^\circ

Correct answer:

\displaystyle 63^\circ

Explanation:

A right angle has a measurement of \displaystyle 90^\circ. To find how much more we would need to add we subtract. 

\displaystyle 90-27=63

Example Question #121 : Measurement & Data

Solve for x. 

100degrees

Possible Answers:

\displaystyle 140^\circ

\displaystyle 120^\circ

\displaystyle 130^\circ

\displaystyle 100^\circ

\displaystyle 110^\circ

Correct answer:

\displaystyle 100^\circ

Explanation:

To find the value of x we add both of the known angles together. 

\displaystyle 40+60=100

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