New Mexico Standards
NM.A. Algebra: Students will understand algebraic concepts and applications.
5-8.A.3. Use mathematical models to represent and understand quantitative relationships.
5.A.3.1. Use mathematical models to represent and explain mathematical concepts and procedures.
5.A.3.2. Understand and use mathematical models such as:
5.A.3.2.b. Pictorial representation of addition and subtraction of rational numbers with regrouping
5.A.3.2.c. Manipulatives or pictures to model computational procedures
NM.N. Number and Operations: Students will understand numerical concepts and mathematical operations.
5-8.N.3. Compute fluently and make reasonable estimates.
5.N.3.1. Add, subtract, multiply, and divide whole numbers.