1. Explain what you think each word means when it is used to make a comparison.
a) ratio- part to part
b) percent- per-100
c) fraction- part to whole
d) difference- how many more or less a number is to another number
2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)
a) ratio- 80 girls : 70 boys reduced to 8 : 7
b) percent- 53% are girls and 47% are boys
c) fraction- 80 over 150 reduced to 8 over 15 girls and 70 over 150 reduced to 7 over 15 boys
d) difference- there are 10 more girls than there are boys
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