Sunday, January 16, 2011

Thessa's Final Percent Post

Percent is out of 100. It's another name for hundredths.

4.1 Key Ideas- To represent a percent, you can shade squares on a grid of 100 squares
called a hundred grid. One completely shaded grid represents 100%. To represent a percent greater than 100%, shade more than one grid. To represent a fractional percent between 0% and 1%, shade 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 one
square from the grid to show the fraction.

4.2 Key Ideas- Fractions, decimals, and percents can be used to represent numbers
in various situations. Percents can be written as fractions and as decimals.

4.3 Key Ideas- You can use mental math strategies such as halving, doubling,
and dividing by ten to ﬁnd the percents of some numbers. To calculate the percent of a number, write the percent as a decimal and then multiply by the number.

4.4 Key Ideas- Percents can be combined by adding to solve problems. You can add the combined percent amount to the original number. Percents can be used to determine amounts that result from consecutive percent increases or decreases. You can multiply the original number by a single percent greater than 100.

Figuring out the percent questions. :)

Here's a link on percent games =).

And here's a website that gives you information about percent.