三桁かけ算

Touch the start button to start the problem.
When you touch the answer field, an input screen will be displayed, so enter your answer and touch enter.
Each question will be judged as correct or incorrect.
The number of correct answers will be displayed after every 10 questions.
Mental arithmetic ability is the ability to calculate in your head, and allows you to perform analysis, simulation, sales, profit estimation, etc. in your head.
Develops the mindset of reaching accurately in the shortest distance