Sunday, January 16, 2011

Final Percent Post

Percent means out of 100. Which is another name for hundredths. There are also Fractional Percents. they are percents that include a portion of a percent.
Example: 0.42%.

Representing Percent:
You can represent percent by drawing a picture or using a hundred grid.
Example: To represent 180% you would need two one-hundred grids. You would shade in the first one-hundred grid and shad 80 squares on the other one.

Fractions, Decimals and Percents:
Fractions, decimals and percents can be used to represent numbers in a lot of different situations. Percents can be written as fractions and decimals.
Example: 0.5% = 1/2%.

Percent of a number:
You can use mental math strategies such as halving, dividing and doubling ten to find the percent of some numbers. You can also calculate the percent of a number by writing the percent as a decimal and then multiply it by the number.
Example: 12 1/2% of 50 = 0.125 x 50
||||||||||||||||||||||||||||| = 6.25

Combining Percents:
Percents can be combined by adding to solve problems. 5% + 7% = 12%
When you want to calculate an increase in a number, you can add the combined percent amount to the original number.
Example: 12% of 100 = 0.12 x 100 = 12.
|||||||||||100 + 12 = 112
You can multiply the original number by a single percent greater than 100.
Example: 112% of 100 = 1.12 x 100
|||||||||||||||||||||||||||= 112

Here is a good website to explain percents.


  1. Graet Job Patrick, Your post was well organized and neat, I liked your video and explanations using animations.

  2. Great job Patrick. Your written part of your post was really neat and easy to understand. Your video was also really neat and had cool animations.