Fractions, percent, and ratio problems:
I. From the final Connections section of the 7th grade Connected Mathematics "Comparing and Scaling: Investigation 2, Comparing Ratios, Percents, and Fractions" [click to enlarge]:
II. From the first review in the 6th Grade Primary Mathematics 6A Workbook:
III. Extra Credit:
Suppose a news story reports that 100% of Amazon reviewers give only one star to a Connected Math book. The publisher think this means that 100% of the parents don't understand how math has changed in the 21st century. Do you agree with him or her? If not, what does the statement mean?