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  • 80 - 30 +40 = ?
    90
  • 36 + 30 - 40 = ?
    26
  • 60 - 50 + 70 = ?
    80
  • 90 - 50 - 20 = ?
    20
  • 25 + 5 + 50 = ?
    80
  • 20 + 20 + 10 + 20 = ?
    70
  • 2 + 7 + 20 + 10 = ?
    39
  • 80 - 20 - 50 = ?
    10
  • 23 + 6 + 20 = ?
    49
  • 10 - 10 + 30 = ?
    30
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