Oregon Focus on Rational Numbers and Equations

Book excerpt: Number and operations and algebra: Develop an understanding of operations on all rational numbers and solving linear equations. Apply models, strategies and procedures to find sums and differences with integers. Apply models, strategies and procedures to find products and quotients with integers. Solve problems involving negative rational numbers. Use strategies to estimate the result of rational number computations. Apply properties of rational numbers and algebra to write linear equations in one variable. Apply properties of rational numbers and algebra to solve linear equations in one variable. (From Oregon focus core standard formative & summative assessment package pg. 5)