Use your intelligence and reasoning to calculate to find the number behind the question mark. The numbers have a close connection to each other, just find the rule, you will solve this question.
Math questions that only smart people can answer correctly.
Most players fail because of lack of calm and haste. So you should be careful to calculate the exact result.
Quickly register yourself in the top smartest people by leaving an answer in the comment box.
Trung Temple
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