中1数学ドリル学習 正負の差

◯About this app
1st grade of junior high school: Learning about positive numbers and negative numbers
You can practice the difference between positive and negative (subtraction) repeatedly.
You can improve your calculation skills through repeated practice.

◯About advertising
You can switch advertisements to [Display] or [Hide] in "Settings". (Default is hidden)

◯Specifications
・The time is 1 minute.
- After the time is up, the results will be displayed along with the previous high score.
- Ads are hidden by default, but if you wish to display them, you can switch from "Settings".

◯About the future
・This is my first time developing an Android app.
・I'm thinking of adding more functions while learning the mechanism little by little.
・I am thinking of adding a change to the points added depending on whether or not you answered the questions correctly in a row.
・I am thinking about adjusting the balance of colors.