Equations: Solving by Addition and Subtraction Study Classzone - Learn the Lesson: Solving One-Step Equation Pearson: Solving one-step whole number equations by adding School Tube: Solving Equations Classzone - Animations: Modeling One-Step Equations Once the web page comes up, please click on "Modeling one-step equations" Brain Pops Click on "Solving Equations" Click on "Play the video" Practice Brain Pops Click on "Solving Equations" Click on "Play the quiz" One-Digit Addition Equation (Make sure you get four in a row before you move on) Two-Digit Addition Equations (4 in a row) One-Digit Subtraction Equations (4 in a row) Two-Digit Subtraction Equations (4 in a row) One-Digit Integer Subtraction Equations (4 in a row) Examples Glencoe Quiz Self-Check Quiz