The McGraw Hill 6th grade book series of games.
Instructions:
Find three coins of different sizes (e.g. quarter, nickle, penny). Flip each and record the head/tail value. Look up the Original number . Flip the three coins and do a look up in the divisor . Divide the number by the divisor . Your opponent may challenge you. Look up the answer in the table on the next page. If you are right and your opponent didn't challenge you, you get a point. If you are right and your opponent did challenge you, you get two points. If you are wrong and your opponent challenged you, your opponent gets a point. If you are wrong and your opponent didn't challenge you, nobody gets a point. Your opponent plays next.
 vals[0] 
FractionDivide
Coin tosses (largest to smallest): TTT TTH THT THH HTT HTH HHT HHH
Original number
2
1
---
3
1
1
---
5
1
---
4
1
6
---
7
1
2
---
5
1
1
---
16
1
32
---
34
Divisor
3
1
---
2
1
2
---
4
1
---
3
2
1
---
6
1
3
---
4
1
2
---
15
1
1
---
12
32
---
33

On a different page so the players have to turn to it...