In math, mistakes are welcome! This lesson helps your students identify and fix errors made while comparing three- to four-digit numbers. Teach the lesson on its own or as support to the lesson Let's Compare Whole Numbers!

Freshen up your understanding of multi-step word problems! Use this lesson to help students use problem-solving thought processes to solve multi-step word problems.

Teach your students to draw an array using base ten notation to solve multiplication problems with two two-digit factors.