Instructions:  Within each team, have campers pair up. If there is an odd number, the team leader gets a 'Bye'.
Campers face each other. Each camper puts both hands behind their back and holds out 0 to 10 fingers. The leader explains what the math problem for this round will be and then yells, "Ready  Go!" and everyone holds their hands together in front. The first camper in a pair to say the correct answer wins the round and advances to the next round.
When there is a champion of each team, they compete for the group championship.
Rounds can be any math problem you want, depending on the age of campers, but try these: Sum of all the fingers
 Difference between the fingers
 Multiply the fingers
 Largest to the power of the Smallest
 Square the Sum of the fingers
 Half of the Sum
 Cube the Difference between the fingers
