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3 digit addition - regrouping

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  • 503 + 125 = ?
    628
  • 225 + 292 = ?
    517
  • 246 + 483 = ?
    729
  • 211 + 258 = ?
    469
  • 509 + 287 = ?
    796
  • 597 + 290 = ?
    887
  • 463 + 472 = ?
    935
  • 487 + 357 = ?
    844
  • 349 + 375 = ?
    724
  • 225 + 846 = ?
    1071
  • 452 + 356 = ?
    808
  • 439 + 329 = ?
    768
  • 326 + 448 = ?
    774
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