1.         Make 21¢ with 3 coins.

 

 

 

 

 

 

 

2.         Make 21¢ with 4 coins.

 

 

 

 

 

 

 

3.         Make 21¢ with 5 coins.

 

 

 

 

 

 

 

4.         Make 51¢ with 3 coins.

 

 

 

 

 

 

 

5.         Make 51¢ with 6 coins.

 

 

 

 

 

 

6.         Make 51¢ with 5 coins.