Number Sense Patterns Missing Operator — Set 31

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easy Set 31
  1. 28 __ 4 = 7
  2. 10 __ 2 = 20
  3. 8 __ 5 = 13
  4. 3 __ 5 = 8
  5. 40 ○ 8 = 5, what is ○?
  6. 18 ○ 3 = 6, what is ○?
  7. 9 ○ 3 = 12, what is ○?
  8. 8 ○ 8 = 16, what is ○?
  9. 3 __ 10 = 30
  10. 16 ○ 6 = 10, what is ○?
  11. 2 __ 7 = 9
  12. 11 ○ 7 = 4, what is ○?
  13. 3 ○ 2 = 1, what is ○?
  14. 5 ○ 3 = 15, what is ○?
  15. 8 ○ 9 = 17, what is ○?
  16. 9 ○ 6 = 15, what is ○?
  17. 7 __ 7 = 14
  18. 8 __ 6 = 48
  19. 6 __ 4 = 2
  20. 49 __ 7 = 7
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