Saturday, January 15, 2011

Shenna's Final Percent Post

Percent means out of 100. It can be written as decimals or fractions and it is another name for hundredths.
For example: 10% means 10/100 or 0.10.

4.1 Representing Percents
- Shade squares on a hundred grid to represent a percent. One fully shaded grid represents 100%
- Shade part of one square to represent a fractional percent less than 1%.
- Shade more than one  grid to represent a percent bigger than 100%
- Shade squares to represent the whole number and shade part of one square to represent the fraction.

4.2 Fractions, Decimals and Percents
- Percent can be written as decimals or fractions
- In different circumstances, numbers can be represented by decimals, fractions and percents.
For example: 2/5% = 0.4%     0.4% = 0.4/100 = 0.004

4.3 Percent of a Number
- To find the percents of some numbers, you can use mental math strategies such as halving, doubling and dividing by ten.
- Write the percent as a decimal and then multiply by the number to calculate the percent of a number.
For example: 15 1/2% of 60 = 0.155 X 60 = 9.30

4.4 Combining Percents
- To solve problems, percents can be combined by adding.   5% + 6% = 11%
- To determine amounts that results from consecutive percent increases or decreases, percents of percents can be used.
- To calculate the increase in a number, you can add the combined percent amount to the original number.
For example: 20% of 100 = 0.2X100 = 20         100+20=120
Or you can multiply the original number by a single percent greater than 100.
For example: 120% of 100 = 1.2X100=120

Here's my percent video.

Click HERE for the link to my percent scribe post.

Click HERE to learn more about percents.

How to Find Whole Number when Percent is Known


  1. Great post Shenna, Your video was very neat and organized so is your post. I liked that your video explains how you got your answer. Next time try to highlight some of the key components to the written part.

  2. Great post Shenna. Your video was really neat and your explained how you got your answer really well. Great job.