input/output tables

Front

Correct output for 11 and 15? Options: 15
19, 7
11, 12
16

Back

15
19

Front

Which gives the correct output for 12 and 15? Options: 13
16, 15
18, 9
12, 9
11

Back

9
12

Front

What is the correct output for 6 and 8?

Back

18
24

Front

Correct output for 8 and 10? Options: 24
50, 48
50, 24
60, 48
60

Back

48
60

Front

Correct output for 40 and 35? Options: 45
40, 35
30, 8
7, 8
6

Back

8
7

Front

Correct output for 54 and 69? Options: 64
79, 44
59, 44
60

Back

44
59

Front

Correct output for 46 and 79? Options: 50
80, 36
69, 460
790, 56
89

Back

56
89

Front

Which gives the correct output for 6 and 10? Options: 18
30, 6
10, 12
20, 13
19

Back

12
20

Front

Correct output for 63 and 72?

Back

7
8

Front

What is the rule? What numbers complete this table?

Back

÷2, 5 and 8