in put-out put tables 101
in put-out put tables 102
in put-out put tables 103
in put-out put tables 104
in put-out put tables 105
100

25     32 

44     51 

56     63

what is the rule? 

+7 

100

2     10

5     25

8     40

9     ?

what number belongs in the question mark?

45 

100

 12      6

 24      17

 42      21

 82      

What number belongs after the 82?

41

100

18      54

20      60

33      99

What is the rule?

x3

100

21       15

34       28

63       57

102     96

What is the rule?

-6

300

30       60

57       87

93       123

150           

What number belongs after 150?

180

300

12        108

27        243

51        459

93        837

What is the rule?

x9

400

33          11

63          21

120          ?

What is the rule? What number belongs after 120?

rule=divided by 3  ?=40 

400

45       9

75       15

95       19

115     ??

What is the rule? What number belongs after 115?

rule=divided by 5    ??=23 

500

53       212

68       272

86       344

What is the rule? 

x4

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