Calculation Card

Is what the Japanese elementary school students are using at the time of the study of the calculation.
Displays repeat the answer to the calculation problem .

There is addition and subtraction , you can choose from three difficulty .
Children can used by oneself , but you can also use the communication tool for the family .
Number of questions is 20 on all level .


※ How to use this app
1. You choose the button from addition or subtraction each 3 levels
2. When the problem is displayed , consider the answer . Or you aloud
3. Touch the problem, please check the answer
4. Problem or answer Touch and go to the next problem
5. it ends with 20 questions .


- You can choose the  background color from  pink ( initial value) or blue
- You can learn at their own speed . 
- To questions randomly
- The number of times of the learning will not be saved
- Because for free, Ad is displayed
- Network connection has been used only for ads .
- This app can use without connect at internet