### All Pre-Algebra Resources

## Example Questions

### Example Question #21 : Negative Numbers

**Possible Answers:**

**Correct answer:**

Let's focus on the exponent. . Remember a value raised to something means that value is multiplied by that power. The negative is applied after the math is done.

### Example Question #21 : Negative Numbers

**Possible Answers:**

**Correct answer:**

When we add a negative number, the sign turns negative. Since we are adding two negative numbers, we treat this as an addition problem and add a minus sign in the end. .

### Example Question #1 : Multiply And Divide Rational Numbers Using Properties Of Operations: Ccss.Math.Content.7.Ns.A.2c

**Possible Answers:**

**Correct answer:**

Let's work from left to right since it's only multiplication and division. Since there is only one negative number, the product of is negative which is . Now we have . Two negative numbers in a division problem makes the answer positive.

### Example Question #1 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b

**Possible Answers:**

**Correct answer:**

When dealing with negative numbers, let's see which number is greater. is greater than and is negative so the answer is negative. We treat this as a subtraction problem. . Because our answer should be negative, the correct answer is .

### Example Question #2 : Solve Problems With The Four Operations With Rational Numbers: Ccss.Math.Content.7.Ns.A.3

**Possible Answers:**

**Correct answer:**

We need to take care of the parentheses first because of PEMDAS. Parentheses has priority over everything. The product is is . Because there is a negative sign outside the parentheses, we need to add it to our answer which now becomes

### Example Question #321 : The Number System

**Possible Answers:**

**Correct answer:**

Remember PEMDAS. Parentheses comes first then multiplication. . We are multiplying two negatives which make a positive number, in this case . Next, we have since there is only one negative number, the answer is negative.

### Example Question #241 : Operations

**Possible Answers:**

**Correct answer:**

Remember PEMDAS. Parenthesis comes first then multiplication. . We are multiplying two negatives which make a positive number, in this case . Next, we have just multiplication of . Since there are two negative numbers and one positive number being multiplied, the answer is positive. and .

### Example Question #1 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b

Solve:

**Possible Answers:**

**Correct answer:**

Remember that adding a negative number is the same as subtracting that same number if it were positive.

### Example Question #22 : Negative Numbers

Solve:

**Possible Answers:**

**Correct answer:**

When you multiply a negative by another negative, the answer will be positive. If you multiply a third negative number, the answer becomes negative again. The rule is:

1. multiplication of an EVEN number of negative numbers = positive number

2. multiplication of an ODD number of a negative numbers = negative number

Therefore,

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

Solve:

**Possible Answers:**

**Correct answer:**

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