3rd grade addition of three numbers game - This far, students have learned how to add two numbers. This game goes a step further, involving addition of three numbers, for example 3 + 4 + 2 = 7. Adding three numbers is not too different from adding two numbers. Similar skills apply in both cases. This is an educational game and a fun math quiz which integrates both a game and a quiz. The game is called the slot machine game while the quiz is a multiple choice questions online test. The slot machine will run and stop randomly, enabling questions students to answer questions intermittently. At the end of the process, players will accumulate points which are a reflection of how many questions were answered correctly. Teachers can use this game to instantly check the level of students in addition. This game can be used by students in 1st, 2nd and 3rd grades.