Don't Despise

123 123 123 123 123........
Now my head is flooded with the damn “123”. They look very simple, but I have been stuck in them over and over again. Humph! I will never be beaten by them. This time, I will definitely gain 100 points. Yes, 100 What about you, my friends?
Come and have a try! I am waiting for you on the list.

This is a very simple mathematical math game. The involved numbers and answers only include 1, 2 and 3, and only addition and subtraction operation will be used. You need to select the right answer within the specified time of the game. It is a totally brain reaction competition game. It is also applicable for children and could greatly improve their mathematical level