Number Sense Patterns Missing Operator — Set 30

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easy Set 30
  1. 11 ○ 5 = 6, what is ○?
  2. 5 __ 1 = 6
  3. 1 ○ 1 = 2, what is ○?
  4. 4 ○ 3 = 12, what is ○?
  5. 1 __ 4 = 5
  6. 4 __ 5 = 20
  7. 1 ○ 4 = 5, what is ○?
  8. 6 __ 5 = 11
  9. 12 __ 10 = 2
  10. 11 __ 4 = 7
  11. 35 __ 5 = 7
  12. 2 ○ 8 = 10, what is ○?
  13. 4 __ 9 = 13
  14. 2 __ 2 = 4
  15. 6 ○ 2 = 12, what is ○?
  16. 2 __ 6 = 12
  17. 9 ○ 6 = 54, what is ○?
  18. 10 __ 4 = 40
  19. 3 ○ 6 = 18, what is ○?
  20. 8 ○ 7 = 1, what is ○?
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