MATHS GAME

1.Which number is the odd one out?
       
       9654 4832 5945 7642 7963 8216 3649
2.Find five consecutive numbers below that total 23.
   
          6 2 9 3 4 7 2 9 3 2 6 4 9 1 2
3.What number should replace the question mark?

ANS:

1.3649: in all the others multiply the first two digits togetherto produce the number formed by the last two digits..2.72932

3.1417: 42 ÷ 3 = 14, 51 ÷ 3 = 17