Arithmetic Exercise is an iPhone app designed to help kindergarten and elementary school students learn mathematics through interactive arithmetic exercises. With a range of features and activities, this app aims to enhance children's arithmetic skills in an entertaining and engaging way.

The main function of Arithmetic Exercise is to provide practice in addition, subtraction, multiplication, and division. The app allows users to work with numbers ranging from 0 to 9999, ensuring a comprehensive learning experience. Additionally, the app offers mixed calculations for each grade, designed according to the curriculum outline. This enables students to practice a variety of math concepts and improve their problem-solving skills.

One of the standout features of Arithmetic Exercise is its ability to enhance arithmetic skills based on historically recommended questions. By presenting students with questions that have been historically proven to be effective in learning, the app ensures that children are exposed to high-quality math exercises.

Furthermore, Arithmetic Exercise includes a draft calculus feature, allowing students to practice their math skills in a free-form manner. This encourages creativity and problem-solving outside the traditional question-and-answer format.

Overall, Arithmetic Exercise is a valuable tool for children to improve their mathematics abilities while enjoying an entertaining learning experience. It provides a comprehensive range of arithmetic exercises and features that cater to different grade levels, making it an ideal companion for young learners.