Pre-Algebra : Pre-Algebra
Study concepts, example questions & explanations for Pre-Algebra
All Pre-Algebra Resources
Example Questions
Example Question #5 : Multiplication And Division
Which expression simplifies to
First:
Inner:
Outer:
Last:
Example Question #6 : Multiplication And Division
What expression simplifies to
When simplified using the FOIL method 
First:
Inner:
Outer:
Last:
When the 2 is distributed and the expression simplified we are left with
Example Question #1201 : Pre Algebra
A salesman for a car dealership earns 12% commission on all sales. What will be his commission for a week if he sells three cars that week - a $55,000 SUV on Tuesday, a $28,000 car on Thursday, and a $42,000 van on Friday?
The total sale price of the cars he sells will be
12% of $125,000 is
which is the salesman's commission.
Example Question #4 : Multiplication And Division
Read the following problem but do not solve it.
Acording to Mr. Smith's will, when he dies, each of his six children is to be left a parcel of land 510 acres in area. If these six parcels make up all of the farm, then how large is Mr. Smith's farm now?
Which of the following expressions must be evaluated in order to answer this question?
There are six parcels of equal size; the total size is therefore the product of the common size (510 acres) and the number of parcels (6). This is
Example Question #31 : How To Multiply
Beck has 5 pairs of the same style of shoe, called the "button up." Each shoe has 6 buttons. How many buttons are there on Becky's "button up" shoe collection?
If Beck has 5 pairs of shoes, that means he has 10 shoes because there are 2 shoes in a pair.
Since each shoe has 6 buttons, that means that there are 60 buttons in the collection.
Example Question #11 : Multiplication And Division
Simplify:
Simplify the numerator and denominator by cancelling out common factors.
Then follow suit and multiply the denominator with denominator and numerator with numerator.
Example Question #192 : Operations And Properties
Multiply:
Multiply the ones digits together.
The ones digit of the final answer is 
Carry over the 
Multiply the 
The answer is:
Example Question #191 : Operations
Multiply:
Eliminate the absolute value sign before proceeding to multiply all the terms.
A value inside the absolute value will result into a positive value.
From here, first multiply 
Therefore we get,
Now we will need to multiply 
First multiply six with nine to get 
Example Question #192 : Operations
Multiply:
Multiply the ones digits.
The 
Multiply the tens digit of 
There are no further calculuations. Combine the numbers.
The answer is:
Example Question #15 : Multiplication And Division
Multiply:
Multiply the ones digit of 
Multiply the tens digit of 
Since this number is 10 or greater, use this tens digit as the carry over for the next calculation.
Multiply the hundreds digit of 
Combine this number with the ones digit of the previous calculations.
The correct answer is:
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