Pre-Algebra : Pre-Algebra
Study concepts, example questions & explanations for Pre-Algebra
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Example Questions
Example Question #204 : Operations
When facing different operations, we will work from left to right since in PEMDAS, multiplication and division has no priority.
The product is 
The quotient is then 
Example Question #204 : Operations And Properties
When facing different operations, we will work from left to right since in PEMDAS, multiplication and division has no priority. We have two negative numbers and one positive number. We will get a negative number when a positive number and negative number multiply.
That answer is
Then, when two negative numbers are divided, we get a positive number.
That answer is 
Example Question #24 : Multiplication And Division
Fill in the blank.
When solving this problem, we must think "what times 7 will give us 28?" In this case,
When we don't know the value of something, we can replace it with a variable. So,
can be written as
Then, we solve for x. We divide both sides by 7.
Example Question #205 : Operations
Solve:
Since we are multiplying with two positive numbers, our answer will be positive. Answer is 
Example Question #211 : Operations
Solve:
When multiplying with a positive number and a negative numberr, our answer is negative. The product is 
Example Question #212 : Operations
Solve:
When multiplying with two negative numbers, our answer becomes positive. THe product is 
Example Question #213 : Operations
Solve:
When dividing with two positive numbers, our answer is positive. We divide normally. Answer is 
Example Question #214 : Operations
Solve:
When dividing a positive number and a negative number, our answer is negative. The quotient is 
Example Question #215 : Operations
Solve:
When two negative numbers are being divided, our answer is positive. The quotient is 
Example Question #216 : Operations
Evaluate the following expression:
Evaluate the following expression:
Let's begin by doing the portion within the parentheses:
Next, let's do our last step
We can double check this by multiplying:
So our answer is indeed, 36.
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