The Numbers 21-99

These are a piece of cake. You take the “tens” form and follow it by the last digit. Here's the full table for 20-29:

20   25  
21   26  
22   27  
23   28  
24   29  

And here are the “tens” that will take us up to (but not including) 100:

30  
40  
50  
60  
70  
80  
90  

Note the common ending for all of 30-90.

All the other numbers are formed in the same way you did the 20's. For example:

53  
47  
79  
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