Points Sum-Calculation Game

Application description:
This is a very fun and exciting dice summing game.
There are three difficulty modes in this calculation game. Calculate and input the sum of all dice points in the input box within the specified time;
If the calculation is correct, you will get 1 point. If the calculation is wrong or exceeds the specified time, one chance will be deducted. There will be three wrong chances.
It is not difficult to calculate the points, but it is difficult to calculate and input it correctly within the prescribed time.