MO.A. Algebraic Relationships
A.3. Use mathematical models to represent and understand quantitative relationships.
A.3.A. Use mathematical models
A.3.A.1. Model problem situations, including multiplication with objects or drawings (DOK 2; MA4 1.6)
MO.N. Number and Operations
N.3. Compute fluently and make reasonable estimates.
N.3.C. Compute problems
N.3.C.1. Apply and describe the strategy used to compute up to 3-digit addition or subtraction problems (DOK 2; MA1 32)