Learn math easily and feel a sense of accomplishment!
It builds confidence along with your child's arithmetic skills!

- Consists of 450 questions.
- No ads and no additional payments.
- No personal information is collected.

■ Learning contents
- Addition and subtraction of natural numbers
- Addition : (two digits) + (single digit), (two digits) + (two digits)
- Subtraction : (two digits)-(single digit), (two digits)-(two digits)

■ Features
- Learning arithmetic easily is an important goal, and the ultimate goal is to gain a sense of accomplishment and confidence through the growth of mathematical thinking.
- Focusing on the essence of mathematics, it has created an environment in which you can concentrate by including only essential elements.
- Simple user interface will make numbers and arithmetic operations more friendly.
- It has been carefully designed to increase the association between quizzes and quizzes so that you can learn the content naturally.
- The difficulty level is gradually adjusted according to the stage to balance tension and relaxation.
- Removed the time limit to make the habit of thinking comfortable enough.
- A sound effect with less rejection was used for incorrect answers. Therefore, it minimizes discomfort in case of an incorrect answer.
- Your child will build confidence with the positive expressions used in the app. It is designed not to be afraid of mistakes, incorrect answers, or low scores.
- UI text is English, but language restrictions are very low. It consists of simple words, so even non-English speakers can use it.

■ Learning method
- Consists of 5 levels, 45 rounds, and 450 questions.
- Each level consists of 9 rounds, for a total of 45 rounds.
- It is recommended to complete 2 rounds per day. About 20 questions per day. This way, it will take about a month to complete all the quizzes.
- To answer the quiz, drag and drop numbers into the question mark box. The numbers are arranged at the bottom of the screen.
- When clearing the mission of the round, the grade is displayed according to the number of incorrect answers.
- You can retry the round at any time. This way you can update your score and rating.

■ Contact
- E-mail : captainmathlab@gmail.com