You will then see the correct answer to the current problem in the bottom window.
You will also see the next problem.
If your answer agrees with the answer on the screen, continue on by working the next problem.
If you did not get the correct answer, click on the word, **HELP**, to see the solution to the
problem.

If you want to return to the previous problem, click on the word, **BACK**, at the bottom of the screen.

The word * percent* is derived from two
words (

We must remember that fact whenever we work a problem which includes any
numbers labelled as a *percent*. For instance, a problem asking us to
find 50% of 90 (answer would be 45). The number __50%__ must be divided
by 100 before we can work the problem because the *percent* sign says,
"DIVIDE BY 100."

Every number has a decimal point. We sometimes do not
show the decimal point. If someone asks you to write down your age you may
write "39" as your age. In fact "39" has a decimal point: 39.0. It's just
common for us to leave decimal points off unless they are needed, such as
in the case of money: $2.39.

The 50 in *Fifty Percent*, in our problem, also has a decimal point:
50.0. Knowing the location of the decimal point makes it easy to divide by 100. Any time we need to divide a
number by 100 we can move the decimal point two places to the left.

Dividing 50.0 by 100 gives us .5 as a real number. 50% equals .5. Moving the decimal point to the left __two__ places divided
50 by 100.

Now we can finish working the problem, 50% of 90.

We simply multiply .5 times 90, which equals 45.

Also, don't forget the rule that says **OF** means **multiply**.
50% __of__ 90 means 50% __times__ 90, or .5 X 90.

**OK****, Let's begin!**

Problem #110% of 400 =

Problem #250% of 80 =

Problem #330% of 200 =

Problem #420% of 450 =

Problem #560% of 75 =

Problem #675% of 900 =

Problem #756% of 50 =

Problem #815% of 40 =

Problem #995% of 1000 =

Problem #105% of 1200 =

Problem #113% of 1500 =

Problem #1215.5% of 60 =

Problem #1365.2% of 125 =

Problem #147.6% of 75 =

Problem #15200% of 33 =

This completes all of the percent review problems. You may click on

Help for answer #1

Help for answer #2

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Help for answer #13

Help for answer #14

Help for answer #15