Oral calculation ability is the core and foundation of calculation ability; Therefore, skilled verbal arithmetic is one of the basic skills that primary school students must master. In order to improve students' oral calculation ability, abstract thinking ability and reasoning ability, and carry out oral calculation exercises, People's Education Publishing House compiled and published "Little Champion in Oral Calculation".

Series functions:

1. Follow the script and pay attention to ability. Synchronize with the compulsory education textbook Mathematics (1-6 grade) published by People's Education Press, and practice once a day. While improving oral arithmetic ability, we should pay attention to the training of mathematical abstract thinking and reasoning ability.

2. Rich in content and lively in form. Design two sections: "practice oral calculation every day" and "challenge yourself", focusing on oral calculation methods.

3. Paper number linkage to expand resources. Push exercises, answers and micro-courses through the official WeChat account of "People Teach Digital Education".