MATHEMATICS LEARNING: Math learning game for children oral arithmetic skill levels in addition, subtraction, multiplication and division. CONVENIENCE: Calculator helps to practice mental arithmetic, develop brain, strengthen knowledge, practice logic, etc. DIGITAL DISPLAY: Digital display, can consolidate wrong questions and questions with answers within a certain time. PORTABLE: Compact, easy to carry, with a writing tablet. GIFT: This educational toy is a great gift for 3-year-old boys and girls for birthdays, Christmas, Halloween and other holidays. EARLY MATHEMATICS LEARNING: Math learning game for children oral arithmetic skill levels in addition, subtraction, multiplication and division. CONVENIENCE: Calculator helps to practice mental arithmetic, develop brain, strengthen knowledge, practice logic, etc. DIGITAL DISPLAY: Digital display, automatic problem determination, special training and easy to use. PORTABLE: Compact, easy to carry, with a writing tablet. GIFT: This educational toy is a great gift for 3-year-old boys and girls for birthdays, Christmas, Halloween and other holidays. Specification: Material: ABS Size chart: 19.3 cm x 12.5 cm / 7.60 inch x 4.92 inch Package contains: 1 electronic calculator Note: 1. This is not a toy for infants, please take away from children to avoid eating. 2.