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

## Example Questions

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### Example Question #1 : Negative Numbers

Solve:

Explanation:

The problem indicates that the result is  units more negative than , which is .

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

Explanation:

When we subtract a negative number, the sign turns positive. It becomes an addition problem. .

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

Solve:

Explanation:

Remember that subtracting a negative number is just like adding the positive of that number, because you move to the right (more positive) on the number line. Therefore

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

Subtract:

Explanation:

Distribute the negative sign through the parentheses.  Double negatives equal a positive.

### Example Question #5 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c

Explanation:

When minus signs meet, the sign becomes positive. This becomes an addition problem. Answer is .

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

Explanation:

When two minus signs meet, the sign becomes positive. Since  is greater than  and is negative, our answer is negative. We treat as a subtraction problem. Answer is .

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

Explanation:

Two minus signs become a plus sign. It's now an addition problem.

Combine the ones and tens digit to get final answer.

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

Explanation:

Two minus signs become a plus sign. It's now an addition problem. Since  is greater than  and is negative, our answer is negative.

We treat as a normal subtraction.

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

Solve:

Explanation:

Two minus signs becomes a plus sign. Since  is greater than  and is positive, our answer is positive. We treat as a normal subtraction. Answer is .

Solve: