Percent means out of 100.
4.1 Key Ideas: 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 percent between 0% and 1% you shade in a part of one square.
4.2 Key Ideas: Fractions, decimals and percents can be used to represent numbers in various situations. Percents can be written as fractions and decimals.
4.3 Key Ideas: You can use some mental math stratagies such as doubling, halving, or dividing by 10 to find percents of some numbers.
4.4 Key Ideas: Percents can be combined by adding to slove problems. You can add teh 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 then 100.