If 5@3=16 and 4@6=25, rule a@b=a×b+1. Then 6@5=?
Question 1
Q1. If 5@3=16 and 4@6=25, rule a@b=a×b+1. Then 6@5=?
Answer: 31
Explanation: Six times five plus one equals thirty one. Work each step carefully; ISSB math rewards accuracy under time pressure.