## Monday, January 17, 2011

### Final Percent Post

Percent:

Means it's out of a hundred or another name for hundredths, it can also be represent as a decimal or as a fraction.

Ex. 50% means 50 out of 100 or 50/100 or 0.65

Representing Percent

A percent can be represented on a hundred grid.
ex. 20%

Decimals, Fractions, and Percents

Percents can be written as a decimal or a fraction.

ex. 1/2=50% 25%=0.25

Percent of a Number

You can use mental math strategies such as doubling, halving, and dividing by ten to find the percent of some numbers.

ex. 12 1/2 of 50%= 0.125x 50= 6.25

Combining Percents

Percents can be combined by adding to solve problems.
ex. 3%+5%=7%

You can add the combined percent amount to the original number to find the increase in a number.

ex. 10% of 100= 0.10 x 100=10 100+10= 110

You can multiply the original number by a single percent greater than 100.

ex. 110% of 100 = 1.10x 100 = 110

Percents of percents can be used to determine amounts that result from consecutive percent increases or decreases.

Here's my percent video :D