This app has a calculator function and a screen that can solve various calculation problems.
Supported Android versions
Android 4.1 (JellyBean)-Android 10 (Q)
[Calculator screen]
The calculator screen has a prime number judgment button, binary number conversion button, and hexadecimal number conversion button.
Judgment of prime number: “○” is displayed if the number is prime, and “×” is displayed if it is not prime.
Binary / hexadecimal conversion: Converts the number to binary or hexadecimal.
(However, these functions cannot be used unless the numerical value is an integer.)
Also, by pressing “?” At the bottom right of the screen, a usage guide is displayed, although it is easy.
[Calculation problem screen]
First, tap the “Level selection” button below. There are difficulty levels from Level 1 to Level 5, each with 10 questions. Sample questions are also displayed in the calculator screen usage guide. In addition, please be aware that a sound will be heard if the answer is correct or incorrect.
Level 1: Addition and multiplication of 1 digit (1 to 9)
Level 2: Addition of 2 digits (10 to 99) and 1 digit (1 to 9). Addition and subtraction of 1 digit (1 to 9).
Level 3: Addition of 2 digits (10 to 99). Multiplication of 2 digits (10 to 99) and 1 digit (1 to 9). Subtraction and division of 1 digit (1 to 10) and 1 digit (1 to 9).
Level 4: 2-digit (10-100), 1-digit, 2-digit (1-99) subtraction and division.
Level 5: Addition and multiplication by 2 digits (10 to 99). Subtraction of 2 digits (10 to 100) and 1 digit, 2 digits (10 to 99), division of 2 digits (10 to 100) and 1 digit, 2 digits (1 to 99), and calculation to find the remainder.
∙ Select a level and press start to start the timer. When all 10 questions are completed, the current time and the best 3rd place will be displayed. Choose to select the level again or return to the calculator.
[Finally]
Publish the app for the first time! Although there are some ugly parts, we will continue to develop apps, so we are waiting for your feedback on Twitter and email.
Also, if you have any problems or requests for the app, please let us know. I don't know if it can be done, but I will do my best as much as possible.
Supported Android versions
Android 4.1 (JellyBean)-Android 10 (Q)
[Calculator screen]
The calculator screen has a prime number judgment button, binary number conversion button, and hexadecimal number conversion button.
Judgment of prime number: “○” is displayed if the number is prime, and “×” is displayed if it is not prime.
Binary / hexadecimal conversion: Converts the number to binary or hexadecimal.
(However, these functions cannot be used unless the numerical value is an integer.)
Also, by pressing “?” At the bottom right of the screen, a usage guide is displayed, although it is easy.
[Calculation problem screen]
First, tap the “Level selection” button below. There are difficulty levels from Level 1 to Level 5, each with 10 questions. Sample questions are also displayed in the calculator screen usage guide. In addition, please be aware that a sound will be heard if the answer is correct or incorrect.
Level 1: Addition and multiplication of 1 digit (1 to 9)
Level 2: Addition of 2 digits (10 to 99) and 1 digit (1 to 9). Addition and subtraction of 1 digit (1 to 9).
Level 3: Addition of 2 digits (10 to 99). Multiplication of 2 digits (10 to 99) and 1 digit (1 to 9). Subtraction and division of 1 digit (1 to 10) and 1 digit (1 to 9).
Level 4: 2-digit (10-100), 1-digit, 2-digit (1-99) subtraction and division.
Level 5: Addition and multiplication by 2 digits (10 to 99). Subtraction of 2 digits (10 to 100) and 1 digit, 2 digits (10 to 99), division of 2 digits (10 to 100) and 1 digit, 2 digits (1 to 99), and calculation to find the remainder.
∙ Select a level and press start to start the timer. When all 10 questions are completed, the current time and the best 3rd place will be displayed. Choose to select the level again or return to the calculator.
[Finally]
Publish the app for the first time! Although there are some ugly parts, we will continue to develop apps, so we are waiting for your feedback on Twitter and email.
Also, if you have any problems or requests for the app, please let us know. I don't know if it can be done, but I will do my best as much as possible.
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