Fill in the Number Chart

Click on the missing numbers and choose the correct answer.
1
 
3
 
5
6
 
 
9
10
11
12
13
14
 
16
17
18
19
20
 
 
23
 
25
26
27
28
 
30
 
32
 
34
35
36
37
 
 
40
41
42
43
 
45
46
47
48
49
 
 
52
53
54
55
56
57
58
59
60
61
 
 
64
65
66
67
68
 
70
71
 
 
 
 
 
77
78
79
80
 
 
83
84
85
86
87
88
89
90
91
92
 
94
95
96
97
98
99
 
Well Done!
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