The ability of oral calculation is the basis of basic mathematical operation. Improving the ability of oral calculation has many advantages.
1. It helps to cultivate observation and concentration.
2. It helps to improve the ability of comprehensive thinking and quick response.
3. It helps to improve the quick response ability and innovation awareness.
4. Help to improve childrens self-confidence in learning.
Oral exercises. Main functions:
-Simple addition, subtraction, multiplication and division of mental arithmetic practice.
-Many types of mental arithmetic exercises.
-A simple interface helps the child focus on mental arithmetic exercises.
-Addition, subtraction, multiplication and division of various mixed calculation exercises.
-Four exercises of mixed calculation of two rules.
-Its fun to support two people to fight.