Solve multi-step real-world and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate. Assess the reasonableness of answers using mental computation and estimation strategies.

Expressions, Equations, and Inequalities

- Solve real-life and mathematical problems using numerical and algebraic expressions, equations, and inequalities.