1. What is the sum of (-6) & (-9)?
-6 + (-9) = -6 - 9 = -15
D. -15 is your answer.
2. What is the result when (-12) is subtracted from (-8)?
-8 - (-12)
Note that when there are two negative signs directly next to each other, it becomes a positive:
-8 - (-12) =
-8 + 12 =
12 - 8 = 4
B. 4 is your answer.
3. What is the sum of two positive numbers?
Two positive numbers will give you a positive answer.
A. Positive.
4. What is the difference when -19 is subtracted by 5?
-19 - (5) = -19 + (-5) = -24
D. -24
5. To add two numbers having the same sign, find the sum of their absolute values and copy the common sign.
6. What is the result when the difference of (-9) and 4 is subtracted from the sum of (-5) and (-3)?
(-5 + (-3))- (-9 - 4)
(-8) - (-13)
-8 + 13 = 5
B. 5
7. What is the quotient of 180 and (-30)?
Divide 180 with -30:
180/-30 = -6
C. -6
8. What is the product of (-9) and 7?
Multiply -9 with 7:
-9 * 7 = -63
-63 is your answer.
9. For what value of the variable n will the statement (-612)/36 = n be true?
Divide:
(-612)/36 = -17
C. -17 is your answer.
~
Note:
If you are adding two positive numbers, your answer will be positive.
If you are adding two negative numbers, your answer will be negative.
If you are adding one positive number and one negative number, your answer will have the sign of whichever term is greater.
If you are subtracting two positive numbers, and your first term is greater then the second term, your answer will be positive.
If you are subtracting two positive numbers, and your first term is less then the second term, your answer will be negative.
If you are subtracting one negative term in front, and one positive term in the back, whichever term has the greater numerical number would have their sign carried over.
If you are subtracting one positive term in front, and one negative term in the back, the negative term's negative will cancel, which would result in a positive. Then you will add.
If you are multiplying two positive numbers, your answer will be positive.
If you are multiplying two negative numbers, your answer will be positive.
If you are multiplying one negative and one positive number, your answer will be negative.
If you are dividing two positive numbers, your answer will be positive.
If you are dividing two negative numbers, your answer will be positive.
If you are dividing one negative and one positive number, your answer will be negative.
