## Sunday, January 16, 2011

### Final Percent Post

PERCENT:

1)Percent- means it is out of a hundred or another name for hundredths, it can be also represented as a fraction or a decimal
eg. 65% means 65 out of a 100 or 65/100 or o.65.

REPRESENTING PERCENTS:

A Percent can be represented on a hundred grid.
for example 13%

FRACTIONS, DECIMALS AND PERCENTS:

Percents can be written as a decimal or a fraction
for example:
1/2= 50% , 15%= 0.15

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.
For example: 12 1/2% of 50 = 0.125 x 50= 6.25

COMBINING PERCENTS:

Percents can be combing by adding to solve problems. eg.
5% + 7% = 12%

You can add the combined percent amount to the original number to find the increase in a number.
eg.
12% of 100= 0.12 x 100 =12
100+ 12 =112

You can multiply the original number by a single percent greater than 100.
eg.
112% of 100= 1.12 x 100
=112

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

2

3)Here is a link from my previous percent post---> John873