All SAT Math Resources
Example Questions
Example Question #3 : Negative Numbers
Subtract:
Simplify the expression by eliminating the double negative signs. Two negatives multiplied by one another will result in a positive number.
Convert the signs.
Add the right side of the equation.
The answer is .
Example Question #3 : Negative Numbers
Simplify the following expression:
Simplify the following expression:
To subtract negative numbers, we must recall that subtracting negative numbers is the same as adding a positive. The two negatives cancel each other out to become positive.
So our answer is negative 220
Example Question #2 : How To Add / Subtract / Multiply / Divide Negative Numbers
If is a positive number, and is also a positive number, what is a possible value for ?
Because is positive, must be negative since the product of two negative numbers is positive.
Because is also positive, must also be negative in order to produce a prositive product.
To check you answer, you can try plugging in any negative number for .
Example Question #3 : Negative Numbers
Multiply the following negative numbers: .
When two negative numbers are multiplied by each other, the result is a positive number.
When a negative and a nonnegative number are multiplied with each other, the result is a negative number.
Therefore, since and are negative numbers, the product must be positive.
Therefore, the answer is positive .
Example Question #681 : Arithmetic
Multiply:
Simplify the expression term by term.
A negative number multiplied by a negative number gives a positive number.
A negative number multiplied by a positive number gives a negative number.
Example Question #4 : Negative Numbers
Multiply:
Multiply the first two terms. A negative number times another negative will result in a positive number.
Multiply 27 with negative 2. A positive number times a negative number will result in a negative number.
The answer is:
Example Question #1 : How To Multiply Negative Numbers
Solve the following equation:
If there are two negative signs, then the answer will be positive. If there were only one negative sign, the answer will be negative.
Example Question #2 : How To Multiply Negative Numbers
Simplify the following expression:
Simplify the following expression:
Let's begin by expanding the inside of the parentheses.
Now, it is important to use all three negative signs. The first two will cancel out, but the third one will remain, ensuring our final answer will be negative.
Example Question #1 : How To Divide Negative Numbers
What is ?
45
A negative number divided by a negative number always results in a positive number. divided by equals . Since the answer is positive, the answer cannot be or any other negative number.
Example Question #5 : Negative Numbers
Solve for :
Begin by isolating your variable.
Subtract from both sides:
, or
Next, subtract from both sides:
, or
Then, divide both sides by :
Recall that division of a negative by a negative gives you a positive, therefore:
or