pupils mental arithmetic - first semester

Description This math app is designed for pupils who are in the first semester or in age group 3-6. pupils can easily do the mental arithmetic exercises to improve their ability of arithmetic. How pupils can benefit? - Pupils can do a mental arithmetic exercise every day,which is designed from easy to difficult ladder - After pupils choose an answer, the App can tell you the answer is right or wrong Features - Easy to use interface which pupils can understand - 100 levels with 12 - 19 questions in every level - All levels available free - Just right for pupils who are in the first semester or in age group 3-6