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Adding 2-digit numbers (easy)

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  • 40 + 30
    70
  • 83 + 40
    123
  • 70 + 40
    110
  • 20 + 80
    100
  • 46 + 40
    86
  • 30 + 30
    60
  • 28 + 30
    58
  • 80 + 10
    90
  • 35 + 40
    75
  • 82 + 30
    112
  • 89 + 10
    99
  • 60 + 20
    80
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