**3rd Grade ADDITION and SUBTRACTION Standards**

***List also includes some bonus standards for data analysis that you may use Math Stackers to discover. **

**TEKS**

**3.1 Mathematical process standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to:**

A. Apply mathematics to problems arising in everyday life, society, and the workplace;

B. Use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution;

C. Select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;

D. Communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;

E. Create and use representations to organize, record, and communicate mathematical ideas;

F. Analyze mathematical relationships to connect and communicate mathematical ideas;

G. Display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.

**3.5 Algebraic reasoning. The student applies mathematical process standards to analyze and create patterns and relationships. The student is expected to**

A. Represent one- and two-step problems involving addition and subtraction of whole numbers to 1,000 using pictorial models, number lines, and equations; Readiness Standard.

3.8 Data analysis. The student applies mathematical process standards to solve problems by collecting, organizing, displaying, and interpreting data. The student is expected to:

A. summarize a data set with multiple categories using a frequency table, dot plot, pictograph, or bar graph with scaled intervals; and

B. solve one- and two-step problems using categorical data represented with a frequency table, dot plot, pictograph, or bar graph with scaled intervals.

**Common Core**

**Operations & Algebraic Thinking:Solve problems involving the four operations, and identify and explain patterns in arithmetic.**

3.OA.D.9 Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.

Measurement & Data

Represent and interpret data.

3.MD.B.3 Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step "how many more" and "how many less" problems using information presented in scaled bar graphs.

*For example, draw a bar graph in which each square in the bar graph might represent 5 pets*.