さんすうのもり

投資家JACK

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About this app

This is a gentle math app for preschoolers and early elementary school children. Its motto is "Learn by repeating." Cute animals cheer children on, and correct answers are accompanied by a big circle and a fun sound. Incorrect answers are gently corrected with an "X."


[Four Menus]

* Addition (Level 1 = up to 10 / Level 2 = 1-digit + 1-digit with carrying over / Level 3 = 2-digit + 1-digit / Level 4 = 2-digit + 2-digit)

* Subtraction (4 levels)

* How Many Together (Composition and decomposition. "What is 5 with 2?" "What is 10 with 5?" etc.)

* Number Games (Comparing numbers. "What is 1 bigger?" "What is 2 smaller?" etc.)


The system uses number keys for manual answer input, naturally developing thinking skills. Reward animations are shown every 10 questions, making it fun to continue until the end. Includes gentle background music. Since no text input is required, even young children can use it on their own.

What’s new

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