What is a Percent?

•number out of a hundred

*(**50% means 50 out of a hundred, 50/100 or 0.50)*4.1 Representing Percents:

•To represent a percent you can use 100 grids. One shaded grid that has all the squares shaded in represents 100%.

•To show a percent that is larger then 100% you shade in more then on grid.

•To represent a fractional percent between 0% and 1% you shade in a part of one square.

•To represent a fractional percent greater than 1% shade squares from a hundred grid to show the whole number and part of on square from the grid to show the fraction.

4.2 Fractions, Decimals, Percents:

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

•Percents can be written as fractions and decimals.

*Example:*

*1/2% = 0.5%*

*150% = 150/100*

*42 3/4% = 42.75%*

*0.5 = 0.5/100 = .005*

*1.5 or 1 1/2*

*42.75% = 42.75/100 = 0.4275*

4.3 Percent of a Number:

•You can use some mental math stratagies such as doubling, halving, doubling or dividing by ten to find percents of some numbers.

•To calculate the percent if a number write the percent as a decimal and then multiply by the number.

*Example: 12 1/2% f 50 = 0.125 x 50 = 6.25 ( 12 1/2% = 12.5% = 0.125*

4.4 Combining Percents:

•Percents can be combined by adding to slove problems

*(eg: 5% + 7% = 12%).*•To calculate the increase of a number:

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

*(eg: 12% of 100 = 0.12 x 100 = 12).* -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.

Links:

A website that further explains percent

A video that explains percent of a number

Another video that explains percent word problems

Karen I like how you used colour and boldeed words, but next time don't make the font so small. It was dufficult for me to read, and I like how you used bullet form but if you are using bullet form make sure it is only one bullet ( not bullet, then a '-') Other than that, great job!

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