Common Core: 3.OA.8

# Solving two step word problems, including those with unknown quantities

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
1. ## Solving two-step word problems using a model

Common Core: 3.OA.8 | by: Jeanette Simpson

In this lesson you will learn to identify the operations in two step word problems by using problem solving steps and a model.

2. ## Solve two-step problems using parenthesis

Common Core: 3.OA.8 | by: Jeanette Simpson

In this lesson you will learn to solve multi-step problems by understanding the use of parentheses.

3. ## Solve two-step problems using letters to represent unknowns

Common Core: 3.OA.8 | by: Jeanette Simpson

In this lesson you will learn to solve two step story problems by using letters to represent unknown quantities in equations.

4. ## Estimate solutions to two-step word problems

Common Core: 3.OA.8 | by: Jeanette Simpson

In this lesson you will learn to estimate solutions to multi-step story problems by rounding.

5. ## Assess reasonableness of an answer using front end estimation

Common Core: 3.OA.8 | by: Jeanette Simpson

In this lesson you will learn to check if your answers to story problems are reasonable by using front end estimation.