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Example Questions
Example Question #93 : Concepts
John's account is overdrawn by . What will his balance be if he deposits
and then writes a check for
to pay a bill?
If John's bank account is overdrawn, he is starting with a negative balance or negative amount in his account. To that he is making a deposit, which is an increase (addition). Then he is writing a check, which is a withdrawal (subtraction).
The equation would be written:
There are a couple of different ways to approach solving this. This is one way.
Take the absolute value of each:
Then subtract:
Because the higher absolute value is positive, then take the sign of that number in the answer.
is the correct answer.
Example Question #94 : Negative Numbers
The rule for multiplying integers with opposite signs is:
A negative times a positive is a negative.
Example Question #95 : Negative Numbers
Whether positive or negative, if the signs are the same, the answer when multiplying is a positive number.
Example Question #96 : Negative Numbers
(negative times negative equals positive)
(positive times negative equals negative)
Example Question #691 : Hspt Mathematics
The division of two negative numbers yields a positive result.
Example Question #692 : Hspt Mathematics
In a division problem, if the signs are different (one is negative and one is positive), the answer is negative.
Example Question #103 : Concepts
The temperature has been falling an average of per hour. If the temperature at 1:00 A.M. is
, then what will be the weather at 6:00 A.M.?
If the temperature is dropping for
hours (1:00 A.M.-6:00 A.M.), then that would be represented as:
If the temperature at 1:00 A.M. is then:
Subtract and take the sign of the higher absolute value.
The sign of the higher absolute value, which is , is negative.
The temperature is at 6:00 A.M. is the correct answer.
Example Question #697 : Hspt Mathematics
The rules for adding integers with different sign is to subtract the absolute value of these numbers, and then take the sign of the higher of the two numbers.
Because has the larger absolute value and is positive, the correct answer is:
.
Example Question #103 : Concepts
The order of operations is PEMDAS, or (1) Parentheses (2) Exponents (3)Multiplication/Division (4) Addition/Subtraction.
First, we need to cube the quantity .
Now we are left with .
Subtracting a negative is the same as adding a positive. So we can rewrite this as
Example Question #693 : Hspt Mathematics
When multiplying decimals you ignore the decimals and multiply the two numbers like you would normally.
Then count the total number of decimal places to the right of the decimal of the original numbers.
Move the decimal from the whole number answer you just received to the left the same number of times as the total decimal places to the right of the numbers before you multiplied them.
Therefore the answer is
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