Number Sense Patterns Missing Operator — Set 54

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easy Set 54
  1. 13 __ 4 = 9
  2. 36 __ 6 = 6
  3. 3 ○ 2 = 5, what is ○?
  4. 1 ○ 7 = 8, what is ○?
  5. 2 __ 8 = 10
  6. 10 ○ 5 = 15, what is ○?
  7. 2 __ 4 = 8
  8. 10 ○ 8 = 18, what is ○?
  9. 6 __ 3 = 3
  10. 6 ○ 8 = 14, what is ○?
  11. 10 __ 10 = 20
  12. 18 __ 10 = 8
  13. 7 ○ 3 = 10, what is ○?
  14. 5 ○ 8 = 13, what is ○?
  15. 12 __ 6 = 2
  16. 9 __ 6 = 3
  17. 8 ○ 7 = 56, what is ○?
  18. 8 ○ 4 = 12, what is ○?
  19. 18 __ 3 = 6
  20. 4 ○ 7 = 28, what is ○?
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