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  • 900+ 700 =
    1,600
  • 7 + 8 =
    15
  • 5 + 5 =
    10
  • 50 + 90 =
    140
  • 9 + 4 =
    13
  • 6 + 6 =
    12
  • 800 + 400 =
    1,200
  • 30 + 90 =
    120
  • 30 + 80 =
    110
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