(textbook answers 3, 7, 11, 13)
For number three i got:
I think that Shindi meant that if the part that your not counting in the percentage is shaded it would be easier to figure out the percentage.
Here are my guesses to the ones i think are easier with coloring in the non percentage part.
Those are some examples of ones that would be easier to read if the other part was highlighted.
For number seven i got:
B) Singapore cat:Siberian tiger-0.13%
C) Yukon river: Frasier river-230%
For eleven i got:
For number thirteen i got:
A) To convert 1/3 to a fraction the equation would be 1 divided by 3=0.3333333333333.
1/3 can be shown on a hundred chart by dividing one square into three pieces and coloring in one.
B) Sometimes repeating decimals are harder to show on a hundred chart because you have to convert it.
Sorry about the video it wouldn't load.