3rd grade multiply a one digit number by a larger number Scientist quiz game - Learn how to multiply large numbers by a one digit number. An example in this game multiplying 345 x 3 = . There are similar problems of this nature that will appear throughout the exercise. As a student solves a question correctly, they will have an opportunity to earn points. Earning points while playing a game makes math fun and learning is seamless. Teachers in search of extra materials on multiplication will find this game very useful. Parents can also use this game for teaching because all they have to do is watch their kids learn on their own and get feedback automatically. This game can be used with students in 3rd, 4th and 5th grades.