The material covered emphasizes the major content areas that are prerequisites to successful performance in entry-level courses in college mathematics. Knowledge of basic formulas and computational skills are assumed as background for the problems, but recall of complex formulas and extensive computation are not required.
9 x 10 = 90 8 x 9 = 72. 7 x 8 = 56 6 x 7 = 42 5 x 6 = 30 4 x 5 = 20 so the answer is 3 x 4 = 12
