Instantly add the number to be displayed! Quiz App

It is a brain training game that answers with adding all the numbers displayed one after another. You can compare results to players all over the world. The numbers are displayed manually or automatically. There are three game types below. Select according to the purpose.^^ 1, Single digit addition Add 1 digit number 10 times. Number feed is manual. 2, Double digit addition Add 2 digit number 10 times. Number feed is manual. 3, Challenge Mode It gets harder and more difficult each time you answer correctly. Number feed is automatic. There are two ranks in their own device rank and world rank. I think you will be No. 1.^^ For details, please see the support URL. Thank you!