In your head! Addition and Subtractin

您可以練習加法和減法。讓我們挑戰排名。

You can practice addition and subtraction.

Challenge the ranking in Challenge Mode.

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Try to do as much addition as possible within 10 seconds.

Try to do as much addition as possible without making any mistakes!

Each has its own ranking. Let's try to get to the top!

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Answer the questions and earn trophies!

For example, if you achieve a certain number of total answers, number of correct answers, and number of consecutive correct answers, you can get a trophy.

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The wrong answers are displayed in red.

You can see which parts you are weak at.

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