Standard Alignments:

TEKS Math: 2.4.A

(A) Recall basic facts to add and subtract within 20 with automaticity

CCSS Math: 2.OA.1

2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

Related Lessons

Use Fact Families
Use Arrays (Addition)
Solve Addition Equations
Memorize Addition Facts
Solve Subtraction Equations
Determine if a Group has Even or Odd Numbers
Use Repeated Subtraction to Divide
Memorize Subtraction Facts
Use Repeated Addition to Multiply
Determine if Equations are True or False
Write an equation that equals odd or even numbers (addition)

Related Concepts

Solve Subtraction Equations
Use Fact Families
Memorize Subtraction Facts
Write Subtraction Equations
Create Story Problems (Addition & Subtraction)
Subtract Numbers by Counting Down
Solve Addition Equations
Solve Subtraction Equations
Determine if a Group has Even or Odd Numbers
Write an equation that equals odd or even numbers (addition)
Subtract Two-Digit Numbers (With Decomposing)
Solve Problems Involving Time Intervals
Subtract Multi-Digit Numbers With Decomposing
Solve Two-Step Word Problems with an Unknown (4 Operations)
Solve Subtraction Word Problems (With Decomposing)
Use Rounding to Estimate Answers
Determine if a Number is Prime or Composite
Memorize Subtraction Facts
Subtract Numbers (1-5)
Solve Subtraction Word Problems