けいさんれんしゅう

For addition and subtraction problems, press the buttons for numbers from the 1's place to the 100's place, set the answer, and press the ``Kaito'' button to display the correct and incorrect answers.
You get points for each question you answer correctly, and when you accumulate points, you get a random vehicle card, so you can remember with a goal in mind.
You can view the cards you have collected at any time from the card list.