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Subtraction with Regrouping

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  • 90 - 29 = ?
    61
  • 106 - 53 = ?
    53
  • 504 - 172 = ?
    332
  • 316 - 144 = ?
    172
  • 424-116 = ?
    308
  • 56 - 39 = ?
    17
  • 504-213 = ?
    291
  • 72 - 49 = ?
    23
  • 531 - 246 = ?
    285
  • 973-458 = ?
    515
  • 480 - 123= ?
    357
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