Solve real world problems with addition and subtraction within 1,000. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models and place ...

Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

👉 Learn how to solve a one-step equation. An equation is a statement stating that two values are equal. A one-step equation is an equation whose solution can be obtained by performing only one step ...