2nd grade addition of 3 digit numbers Scientist quiz game - In this math game, students will learn how to add three digit numbers. Three digit numbers are also referred to as three place numbers. Adding three place numbers might or might not entail that students understand how to carry numbers forward. Adding large numbers is a skill that students who learned how to add small numbers will easily understand. This is an interactive educational fun game. It can serve as an online math test since it takes the form of a quiz. As students solve addition problems, they can choose the correct answer and find out if they choose the right response or not. This is an activity for 2nd , 3rd, 4th and 5th grades.