Final Percent Post

Chapter 4: Understanding Percent

1. Summarize

Percent: Means out of 100, another name for hundredths

Fractional Percent: A percent that includes a portion of a percent, such as 1/2%, 0.42%, 7 3/8%, 125 3/4%, and 4.5%.

4.1 Representing percents

-represent percent, shade squares on hundred grids, one complete shaded grid is 100%

-represent percent greater than 100%, shade more than one grid

-represent fractional percent between 0% and 1%, shade part of one square

-represent fractional percent greater than 1%, shade squares from hundred grid to show whole number and part of one square from grid to show fraction.

Example:

4.2 Fractions, Decimal, and Percents

-fractions, decimals, and percents can be used to represent number in various situations

-percents ca be written as fraction and decimals

Example:

Decimal=Percent=Fraction

0.0064=0.64%=8/125

4.3 Percent of a Number

-can use mental math strategies such as halving, doubling, and dividing by 10 to find the percents of some number

-to calculate the percent of a number, write percent as decimal and then multiply by the number

Example:

12 1/2 of 50 = 0.125x50 = 6.25

4.4 Combining Percents

-can be combined by adding to solve problems

Example:5% + 7%=12%

-to calculate increase in number

-can add the combined percent amount to original number

Example:12% of 100 = 0.12x100=12

100+12=112

-cam multiply original number by a single percent greater than 100

Example:112% of 100 = 1.12x100

= 112

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

2. Percent Review Video

*Sorry it's over 5 minutes*

3. Link

4. Link and Video