1. Common Core State Standards
2. Math
3. Content
4. Grade 3
5. Operations And Algebraic Thinking

Solve Problems Involving The Four Operations, And Identify And Explain Patterns In Arithmetic.

Outcomes

• 3.OA.8
  Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.3
  Play Activities 130
  Examples
• 3.OA.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.
  Play Activities 42
  Examples