Solving One-Step Equations Worksheets - Level A | Middle ... Each center includes 16 task cards, a center sign, and a worksheet. A teacher answer key is also included. Fraction Task Cards included: 1. Changing Mixed Numbers to Improper Fractions- in this set students will work through 16 task cards to change Mixed Numbers to Improper Fractions. 2. Changing Improper Fractions to Mixed Numbers- in this set… T