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 total with tip . Flip the three coins and do a look up in the total excluding the tip . Determine the percentage tip . 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] 
Tips
Coin tosses (largest to smallest): TTT TTH THT THH HTT HTH HHT HHH
Total with tip 117 119 121 123 125 127 129 131
Total without tip 97 99 101 103 105 107 109 111

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

 vals[0] 
Tips
Tip Percentages 117 119 121 123 125 127 129 131
97 20.62% tip 22.68% tip 24.74% tip 26.8% tip 28.87% tip 30.93% tip 32.99% tip 35.05% tip
99 18.18% tip 20.2% tip 22.22% tip 24.24% tip 26.26% tip 28.28% tip 30.3% tip 32.32% tip
101 15.84% tip 17.82% tip 19.8% tip 21.78% tip 23.76% tip 25.74% tip 27.72% tip 29.7% tip
103 13.59% tip 15.53% tip 17.48% tip 19.42% tip 21.36% tip 23.3% tip 25.24% tip 27.18% tip
105 11.43% tip 13.33% tip 15.24% tip 17.14% tip 19.05% tip 20.95% tip 22.86% tip 24.76% tip
107 9.35% tip 11.21% tip 13.08% tip 14.95% tip 16.82% tip 18.69% tip 20.56% tip 22.43% tip
109 7.34% tip 9.17% tip 11.01% tip 12.84% tip 14.68% tip 16.51% tip 18.35% tip 20.18% tip
111 5.41% tip 7.21% tip 9.01% tip 10.81% tip 12.61% tip 14.41% tip 16.22% tip 18.02% tip