daphne's (textbook) scribepost

(textbook pages 128-129)

4.)

a.) this diagram represents 112% (in total, there are 112 squares shaded)

b.) this diagram represents 0.2% (there are 2 squares shaded in one square that is divided by 10, therefore it is 0.2% or 2/10 ->two tenths)

c.) this diagram represents 85.33% or 85 and 1/3 (85 squares are shaded AND one square that is divided by three has 2 squares shaded [1/3] therefore it is 85.33%)

5.)

a.) this diagram represents 0.3% or 1/3 (one square is divided by 10 and 3 are shaded, therefore it is 0.3%)

b.) this diagram represents 125.5% or 125 1/2 (125 squares are shaded and one square divided by 2, and 1/2 is shaded)

c.) this diagram represents 282% (there are 2 hundred grids, and one grid with 82 squares shaded, therefore this diagram represents 282%)

8.)

How many hundred grids are needed to show each of the following percents.

a.) 300% - you will need 3 grids (one grid contains one hundred, 100x3=300)

b.) 466% - you will need 5 grids (one grid contains one hundred, 100x4=400.. but you still have "66" left, so you will need 5 grids)

c.) 1200% - you will need 12 grids (one grid contains one hundred, 100x12=1200)

11.)

The land area of Alberta is about 113%

of the land area of Saskatchewan. Use

hundred grids to show how the land area

of Alberta compares with the land area of

Saskatchewan.

Alberta would have 113% and Saskatchewan would have 100%

here is a link to a VIDEO about percentages in hundred grids :)

here is also a link to a WEBSITE about percentages.