# GED Math : Operations with Negative Numbers

## Example Questions

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### Example Question #1 : Operations With Negative Numbers

Solve:      Explanation:

When a negative number is multipied by a positive number, the result is negative. Therefore, .

### Example Question #111 : Basic Operations

Evaluate: Do not use a calculator.     Explanation:

To subtract a larger positive number from a smaller positive number, do the reverse, then affix a negative symbol, as demonstrated here: So subtract 3.7 from 9.17: Since the answer must be negative, it is .

### Example Question #3 : Operations With Negative Numbers

Evaluate: Do not use a calculator.     Explanation:

To obtain the product of two numbers of unlike sign, multiply their absolute values: The product will remain positive.

### Example Question #1 : Operations With Negative Numbers

Evaluate for . Do NOT use a calculator.     Explanation:

Substitute for in the expression.      ### Example Question #1 : Operations With Negative Numbers

Evaluate: Do not use a calculator.     Explanation:

To subtract with negative numbers, change to an addition and make the second number its opposite:  To add two numbers of unlike sign, if the positive has the greater absolute value, simply subtract the absolute values.  ### Example Question #6 : Operations With Negative Numbers

Evaluate: Do NOT use a calculator.     Explanation:

To obtain the product of two numbers of unlike sign, multiply their absolute values and affix a negative symbol. ### Example Question #7 : Operations With Negative Numbers

Which of these is not equal to ?

Do not use a calculator.   The reciprocal of  Explanation:

Only one of the choices is positive - , which is the quotient of two negative numbers. This must be the correct response.

### Example Question #2 : Operations With Negative Numbers

Evaluate:      Explanation:     ### Example Question #9 : Operations With Negative Numbers

How many of these statements are correct?

I) II) III) Two

Three

None

One

Three

Explanation:

The absolute value of a negative number can be determined by removing the negative symbol, so . Of the three numbers , all are less than or equal to 0.5.

### Example Question #121 : Basic Operations

Raise to the third power.

Do not use a calculator.     Explanation:

An odd power of a negative number is negative, so take 11 to the third power,  then affix a negaitve symbol. The result must be negative, so the correct response is .

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