1. Make 21 with 3 coins. Dime, Dime, Penny

 

 

 

 

2. Make 21 with 4 coins. Dime, Nickel, Nickel, Penny

 

 

 

 

3. Make 21 with 5 coins. Nickel, Nickel, Nickel, Nickel, Penny

 

 

 

 

4. Make 51 with 3 coins. Quarter, Quarter, Penny

 

 

 

 

5. Make 51 with 6 coins. Dime, Dime, Dime, Dime, Dime, Dime, Penny

 

 

 

 

6. Make 51 with 5 coins. Quarter, Dime, Dime, Nickel, Penny