OR.5.1. Number and Operations and Data Analysis: Develop an understanding of and fluency with addition and subtraction of fractions and decimals.
5.1.2. Use decimal models, place value, and number properties to add and subtract decimals (to the thousandths).
5.1.4. Develop fluency with efficient procedures for adding and subtracting fractions and decimals and justify why the procedures work.
5.1.5. Solve problems involving the addition and subtraction of fractions and decimals.