Saturday, January 15, 2011

Raelynn's Final Percent Post

Representing percents - Means out of 100. It is another name for hundredths.
eg. 65%= 65 out of 100, 65/100 or 0.65.

Fractional Percent - A percent that includes a portion of a percent.
eg. 7 3/8 or 4.5%.

Fractions, Decimals And percents - A percent that includes a portion of a percent.
eg. 7 3/8 or 4.5%.
Fractions, decimals and percents can be used to represent numbers in many different situations. Percents can be written as fractions and decimals.
eg. 1/2 = 0.5%. 150% = 150/100, 1.5 or 1 1/2.
You can use mental math strategies like halving, doubling and dividing to find the % of some numbers. 12 1/2% of 50= 1.125 x 50= 6.25.
Percents can also be combined by adding to solve problems. 5%+7%=12%

Percent of a Number - You can use mental math strategies such as halving, doubling, and dividing by ten to find the percent of some numbers. To calculate the percent of a number, write the percent as a decimal then multiply by the number 12 1/2= 12.5% = 0.125
12 1/2% of 50 = 0.125x5o= 6.25

Combining Percents
* percents can be combined by adding to solve problems 5%+7%=12%
* to calculate the increase in a number
* you can add the combined percent amount to the original percent
* you can multiply the original number by a single percent greater than 100
* percents of percents can be used to determine amounts that result from consecutive increases or decreases.


Here's my video:

Click here to know more about percents.

Click here to watch the video about percents.

2 comments:

  1. Great post Raelynn, Your video was very well explained, Your written is neat and organized too. Next Time try to highlight some of the key components.

    ReplyDelete
  2. Great job Raelynn. Your video was really good and neat, which was easy to read and understand. Your written part of your post is really neat and organized.

    ReplyDelete