# Pre-Algebra : Negative Numbers

## Example Questions

### Example Question #51 : Negative Numbers

Explanation:

Since  is greater than  and is positive, our answer is positive.

We treat as a normal subtraction.

.

Another way to look at this problem is looking at the number line and starting from negative nine move to the right twelve spaces.

### Example Question #41 : The Number System

Explanation:

When adding two negative numbers, we treat as an addition problem and add the minus sign in the end.

Add the ones digits together:

Add the tens digits together:

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.

Add the ones digits together:

Add the tens digits together:

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 #53 : Negative Numbers

Explanation:

When adding two negative numbers, we treat as an addition problem and add the minus sign in the end.

Another way to look at this problem is to start at negative seven on a number line and move to the left three places.

### Example Question #5 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Explanation:

When multiplying a negative number and a positive number, our answer is negative.

Multiply normally.

### Example Question #51 : Negative Numbers

Explanation:

When multiplying two negative numbers, our answer is positive.

Multiply normally. First multiply two by eight. Then multiply four and one.

Next, place a zero in the ones digit spot and multiply one by two followed by multiplying one by one.

From here, add the two products together.

### Example Question #52 : Negative Numbers

Explanation:

We count the number of negative numbers. Any odd amount of negative numbers, our answer will be negative. Three is odd so our answer is negative. We work from left to right.

Now our expression becomes

### Example Question #3 : Divide Integers: Ccss.Math.Content.7.Ns.A.2b

Explanation:

When dividing a negative number and a positive number, our answer is negative. Divide normally.