Use this worksheet to continue practice with two addition strategies: expanded notation and standard algorithm. Students will be challenged to solve three-digit addition problems and then check their work using multiple methods.

Use this worksheet to practice two strategies for solving three-digit addition problems. Students will flex their math muscles as they use both the expanded notation and standard algorithm strategies to solve challenging math problems.

Give students practice adding three-digit numbers within 1,000! 

Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.