買い物をしよう

This is an app that allows you to learn shopping on your desk. Most apps are about learning to pay exact amounts. However, in actual shopping, if you purchase an item that costs 130 yen, there is no problem even if you pay 200 yen. Therefore, if you paid more than the price, we made it a correct answer. × or incorrect answers will not be displayed.
Also, if you set the payment amount to be displayed, the hundreds place will increase by 1 each time you pay a 100 yen coin. Every time you pay a 10 yen coin, the tens place increases by 1. I hope that you will be able to understand the total amount naturally from this system.
We would be happy if you could use it for field trips or for learning about shopping before a school trip.