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Common Core: 7th Grade Math : Subtract Rational Numbers and Understand The Absolute Value of Their Difference: CCSS.Math.Content.7.NS.A.1c

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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All Common Core: 7th Grade Math Resources

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Example Questions

Example Question #71 : The Number System

99-(-16)

Possible Answers:

115

105

Correct answer:

115

Explanation:

99-(-16) Two negative signs become a plus sign. This is now an addition problem.

Answer is 115

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Example Question #12 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

-245-(-346)

Possible Answers:

101

591

Correct answer:

101

Explanation:

-245-(-346) Two negative signs become a plus sign. Since 346 is greater than 245 and is positive, our answer is positive. We treat as a normal subtraction.

Answer is 101

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Example Question #13 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

-486-(-296)

Possible Answers:

782

190

Correct answer:

Explanation:

-486-(-296) Two minus signs become a plus sign. Since 486 is greater than 296 and is negative, our answer is negative. We treat as a normal subtraction.

Answer is .

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Example Question #11 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Solve:

5-(-8)

Possible Answers:

Correct answer:

Explanation:

When subtracting with a negative sign, it turns into addition. Now we have 5+8 . The answer is .

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Example Question #12 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Use the number line provided to help solve the following problem:

-3-4

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

Next, we have which means we need to move places to the left on the number line. When we have an addition sign (+) we move to the right because that is towards the positive side of the number line. When we have a subtraction sign (-) we move to the left because that is towards the negative side of the number line.

3 4

The orange arrow moved places to the left, and ended at ; thus,

-3-4=-7

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Example Question #13 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Use the number line provided to help solve the following problem:

-12-3

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

12 3

The orange arrow moved places to the left, and ended at ; thus,

-12-3=-15

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Example Question #83 : The Number System

Use the number line provided to help solve the following problem:

-11-2

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

11 2

The orange arrow moved places to the left, and ended at ; thus,

-11-2=-13

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Example Question #14 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Use the number line provided to help solve the following problem:

4-10

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

4 10

The orange arrow moved places to the left, and ended at ; thus,

4-10=-6

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Example Question #85 : The Number System

Use the number line provided to help solve the following problem:

-3-9

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

3 9

The orange arrow moved places to the left, and ended at ; thus,

-3-9=-12

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Example Question #86 : The Number System

Use the number line provided to help solve the following problem:

-7-5

Negative number line

Possible Answers:

Correct answer:

Explanation:

In order to solve this problem, we need to start at on the number line.

7 5

The orange arrow moved places to the left, and ended at ; thus,

-7-5=-12

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All Common Core: 7th Grade Math Resources

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Common Core: 7th Grade Math : Subtract Rational Numbers and Understand The Absolute Value of Their Difference: CCSS.Math.Content.7.NS.A.1c

Study concepts, example questions & explanations for Common Core: 7th Grade Math

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #71 : The Number System

Example Question #12 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #13 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #11 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #12 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #13 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #83 : The Number System

Example Question #14 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Example Question #85 : The Number System

Example Question #86 : The Number System

All Common Core: 7th Grade Math Resources

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