Math Worksheets and Study Guides Third Grade. Open Number Sentences

The resources above cover the following skills:

Knowledge of Algebra, Patterns, and Functions: Students will algebraically represent, model, analyze, or solve mathematical or real-world problems involving patterns or functional relationships.
Expressions, Equations, and Inequalities: Write and identify expressions.
Represent numeric quantities using operational symbols (+, -, x, /) (Assessment limit: Use operational symbols (+ or -) and whole numbers (0 - 50)).
Expressions, Equations, and Inequalities: Identify, write, solve, and apply equations and inequalities.
Represent relationships using appropriate relational symbols (<, >, or =) and operational symbols (+, -, x, /) on either side (Assessment limit: Use operations symbols (+ or -) and whole numbers (0 - 1000)).
Find the missing number (unknown in a number sentence (equation using operational symbols (+, -, x, /) (Assessment limit: Use one operational symbol (+ or -) and whole numbers (0 - 100)).
Find the missing number(s) (unknown on one or both sides of a number sentence (equation).
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.
Number Computation: Analyze number relations and compute.
Represent multiplication and division basic facts using number sentences, picture, and drawings (Assessment limit: Use basic facts of no more than 9 x 9 = 81).
Processes of Mathematics: Students demonstrate the processes of mathematics by making connections and applying reasoning to solve problems and to communicate their findings.
Problem Solving: Apply a variety of concepts, processes, and skills to solve problems
Apply a strategy, i.e., draw a picture, guess and check, finding a pattern, writing an equation
Communications: Present mathematical ideas using words, symbols, visual displays, or technology
Use multiple representations to express concepts or solutions
Express solutions using concrete materials
Express solutions using pictorial, tabular, graphical, or algebraic methods