This set includes 4 worksheets for less than the price of buying them each separately! It includes: 1&2) Easy Mental Percents A and B – These worksheet practices finding percents with number conducive to mental math. Example 1: What is 15% of 800? . Example 2: What is 16% of 50? 3) Percents VIII: Using Shortcuts - This worksheet practices finding percents with number conducive to mental math or simple paper calculations. Example: What is 33.33% of 120,000? 4) Percents XII: Percent Change Word Problems & Mental Math – This worksheet has two parts. The first part has percent change word problems, that may require some pencil and paper calculation. The second part has percent change and regular percent problems conducive to mental math.