Sunday, January 16, 2011

Final Percent Post

What is a percent?


-Means out of 100


-Another name for hundreths


-Ex. 76% means 76 out of 100




4.1 Representing Percents


-You can represent a percent by shading in a hundred grid


-You can also use more than one grid to represent a percent larger than 100


-If representing a fractional percent, you can shade in a part of one square


Ex.




4.2 Fractions, Decimals, and Percents


-Fractions, decimals, and percents can be used to represent numbers in various situations


-Percents can also be written as fractions and decimals


Ex. 50% = 0.5 = ½




4.3 Percent of a Number


-To find percents of some numbers, you can use mental math strategies such as halving, doubling and dividing by ten


-Write a percent as a decimal and multiply it by the number to find the percent of a number


Ex. 12 ½ % of 50 = 0.125 x 50 = 6.25




4.4 Combining Percents


-You can add some percents in order to solve a problem


-To find the increase of a number,


-You can add the combined percent amount to the original amount


Ex. 19% of 100 = 0.19 x 100 = 19


100 + 19 = 119


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


Ex. 119% of 100 = 1.19 x 100 = 119




Click here to see my percent scribe post.


You can also visit this website to learn more about percents




This is my percent video:

1 comment:

  1. Great Job Hanna! I liked how your picture was very easy and understandable. It was very neat. I liked how you chose colour so that it can stand out, next time don't have such big spacing. ( Shift+Enter) shouldn't make such a big gap, good job Hanna!

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