Asked by Anonoumous

Can I please get help with math involving percents?
Answered by Ms. Sue
Of course.

Please post a problem.
Answered by Anonoumous
How do you add / subtract percents?
Answered by Ms. Sue
20% + 30% = 50%

60% - 10% = 50%

Same way you add and subtract other numbers.
Answered by Anonoumous
How do you do percents like in coupons or sales, or do percents in a clearance isle for example?
Answered by Ms. Sue
20% off this shirt?

Change the percent to a decimal by moving the decimal point two places to the left.

20% off $25 =
0.2 * 25 = $5.00 amount off

With 20% off, the shirt now costs $20.00.

Answered by Anonoumous
I don't understand.
Can you please explain more?
Answered by Ms. Sue
Which part don't you understand?

Answered by Anonoumous
convert decimal
Answered by Ms. Sue
OK. Let's say you want to buy a shirt that is advertised for 20% off the regular price.

20% means 20 out of 100 or 20/100. So 20% is 0.20.

When we multiply or divide, we use the decimal form.
Answered by Anonoumous
OK. I understand.
Thanks for helping me!
Answered by Ms. Sue
You are welcome.
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