Brain Training! Calculation description

It is this mission you want to challenge! !

Formula of four questions is Written to test a single sheet of paper.
Let me scored as much as possible during the "one minute" it!

To test paper formula was written
There are a correct answer, the wrong answer.
Answer is correct "○"
And if wrong "✔"
Give me to score the answer sheet as much as possible to write.

And able to compete with others if you participate in the rankings!

I selected this hotel as a top choice!
If you are confident study brain training like games, math for children, in mental arithmetic!


Addition
Subtraction
Subtraction plus
Multiplication