Number Sense Patterns Missing Operator — Set 29

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easy Set 29
  1. 10 ○ 9 = 19, what is ○?
  2. 24 ○ 3 = 8, what is ○?
  3. 7 ○ 4 = 3, what is ○?
  4. 10 ○ 2 = 5, what is ○?
  5. 2 __ 1 = 3
  6. 13 __ 9 = 4
  7. 14 ○ 6 = 8, what is ○?
  8. 6 ○ 8 = 48, what is ○?
  9. 5 __ 3 = 2
  10. 10 ○ 4 = 40, what is ○?
  11. 5 __ 10 = 50
  12. 2 ○ 3 = 5, what is ○?
  13. 5 ○ 5 = 25, what is ○?
  14. 7 ○ 5 = 35, what is ○?
  15. 20 ○ 4 = 5, what is ○?
  16. 13 ○ 8 = 5, what is ○?
  17. 10 __ 1 = 11
  18. 18 ○ 9 = 9, what is ○?
  19. 10 ○ 2 = 20, what is ○?
  20. 48 ○ 8 = 6, what is ○?
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