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Example Questions
Example Question #91 : Negative Numbers
Solve:
When subtracting with a negative sign, it turns into addition. Now we have . The answer is
.
Example Question #1 : Add And Subtract Rational Numbers: Ccss.Math.Content.7.Ns.A.1d
Solve:
Let's work from left to right since it's only subtraction and addition. Since is greater than
and it's positive our answer is positive, but we treat this like a subtraction problem because the
is negative.
. Now we have
.
is greater than
and it's negative so our answer is negative and we treat this like a subtraction problem.
, but since our answer should be negative our answer is
.
Example Question #92 : Negative Numbers
Solve:
When multiplying two negative numbers, the negative signs cancel each other out, making for a positive solution. If only one number is negative, the solution will be negative.
Therefore we can rewrite as
, which is
.
Example Question #1 : Add And Subtract Rational Numbers: Ccss.Math.Content.7.Ns.A.1d
Solve:
Solve by first combining signs and eliminate the parentheses.
A positive multiplied with a negative sign will give a negative sign.
Example Question #93 : Negative Numbers
Solve:
First, since we are multiplying a negative value with a positive value, we need to realize the product is going to be negative. Next, we can multiply the values.
Since the answer is negative, the answer is .
Example Question #2 : Divide Integers: Ccss.Math.Content.7.Ns.A.2b
Solve:
When dividing with two negative values, the answer becomes positive. Then we just divide by
, which equals
. The answer is
or
.
Example Question #3 : Divide Integers: Ccss.Math.Content.7.Ns.A.2b
Solve:
When dividing with negative numbers, we count the number of negative numbers. We have one so that means the answer is negative. So the quotient is .
Example Question #94 : Negative Numbers
Solve:
When solving this problem remember our orders of operation, or PEMDAS.
PEMDAS stands for parentheses, exponents, multiplication/division, and addition/subtraction. When you have a problem with several different operations, you need to solve the problem in this order and you work from left to right for multiplication/division and addition/subtraction.
Simplify the quantities inside the parentheses. Then multiply and distribute the coefficient in front.
Example Question #95 : Negative Numbers
Solve:
When solving this problem remember our orders of operation, or PEMDAS.
PEMDAS stands for parentheses, exponents, multiplication/division, and addition/subtraction. When you have a problem with several different operations, you need to solve the problem in this order and you work from left to right for multiplication/division and addition/subtraction.
Evaluate the quantities inside the parentheses first.
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