A set of 18 worksheets and a quiz on mental math strategies to find percents, designed for fifth grade level. Teaches 100%, 0%, 50%, 25%, 75%, 200%, 33⅓%, 10% (and multiples of 10%), 20% as a fifth (dividing by 5), and percents by 100 (e.g. 7% of 300 means 7 for each 100) along with variations of that strategy (6% of 50 is half of 6% of 100, 6% of 150 = 6% of 100 + 6% of 50). Can be used in tutoring or as a resource with specific students who need more focused practice on the concept. May be us