Common Core Mathematical Content Standards:
6.NS.3 Fluently add, subtract, multiply and divide multi digit decimals.
7.NS.3 Solve real world and mathematical problems involving the four operations with rational numbers.
6.RP Understand ratio concepts and use ratio reasoning to solve problems.
7.RP Analyze proportional relationships and use them to solve real-world and mathematical problems.
8.EE Work with radicals and integer exponents
High School Mathematical Modeling Standard
Grades 6, 7, 8, High School