## ◂Math Worksheets and Study Guides First Grade. Subtraction Facts

### The resources above correspond to the standards listed below:

#### Maryland Standards

MD.1.0. Knowledge of Algebra, Patterns, and Functions: Students will algebraically represent, model, analyze, or solve mathematical or real-world problems involving patterns or functional relationships.
1.B.1. Expressions, Equations, and Inequalities: Write and identify expressions.
1.B.1.a. Represent numeric quantities using concrete and pictorial representations and operational symbols (+, -) with whole numbers to 20.
MD.6.0. Knowledge of Number Relationships and Computation/Arithmetic: Students will describe, represent, or apply numbers or their relationships or will estimate or compute using mental strategies, paper/pencil, or technology.
6.A.1. Knowledge of Number and Place Value: Apply knowledge of whole numbers and place value.
6.A.1.a. Use concrete materials to compose and decompose quantities up to 20.
6.A.1.b. Identify multiple representations for a number, such as: 12, 6 + 6, dozen.
6.A.1.e. Read, write, and represent whole numbers up to 100 and beyond using models, symbols, and words.
MD.7.0. Processes of Mathematics: Students demonstrate the processes of mathematics by making connections and applying reasoning to solve problems and to communicate their findings.
7.C.1. Communications: Present mathematical ideas using words, symbols, visual displays, or technology
7.C.1.a. Use multiple representations to express concepts or solutions
7.C.1.d. Express solutions using concrete materials
7.C.1.e. Express solutions using pictorial, tabular, graphical, or algebraic methods