Main functions:
-The addition, subtraction, multiplication and division of any number range (0~100).
-Mixed calculation of all grades designed according to the outline.
-According to the historical records, it is recommended to improve the arithmetic ability.
-Draft calculation.
It is a good helper for children to improve their math ability in entertainment.
-The addition, subtraction, multiplication and division of any number range (0~100).
-Mixed calculation of all grades designed according to the outline.
-According to the historical records, it is recommended to improve the arithmetic ability.
-Draft calculation.
It is a good helper for children to improve their math ability in entertainment.
Show More
