Introduction - If you have any usage issues, please Google them yourself
This small game for primary school students 1 ~ 2, randomly selected two integers and addition and subtraction formula to ask students to answer. For the first grade students are young, good move, poor self-control and other characteristics, the learning process, should be as interesting as possible, should be a small game and encourage the main, so that students in the interesting activities and games to learn new Knowledge, the use of new knowledge.