Addition means putting two or more numbers together and finding the sum. When adding doubles, students will be introduced to the concept of multiplication by two. Examples of problems to solve in this activity include the following: 3 + 3, 2 + 2 and more. This math game integrates a slot machine component. Students will hit the slot machine and get a chance to win points. This game is fun but students will also learn addition during the process of playing. It is also a MCQ in which players solve problems and choose the correct answer in each case. This game is suitable for students in 1st , 2nd and 3rd grades.