Number Chart 1
Starting at 1, fill in the missing numbers.

        3 4     6         9    
    12 13     15 16         19 20
21 22 23 24 25 26 27 28     30
        33             37 38 39 40
    42 43 44 45 46         49 50
51             55         58 59    
61 62 63                     69    
        73 74 75 76             80
    82 83     85             89 90
91     93 94 95 96 97            

 

 

Answer Key

 

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