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4 by 4 addition

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  • 1152 + 6218=
    7370
  • 6480 + 2100=
    8480
  • 6514 + 2037=
    8551
  • 2005 + 1479=
    3479
  • 7039 + 2803=
    9842
  • 3694 + 2301=
    5995
  • 7009 + 1459=
    8468
  • 3118 + 4417=
    7535
  • 1216 + 3282=
    4498
  • 3248 + 1428=
    4876
  • 5202 + 4220=
    9422
  • 1409 + 8003=
    9412
  • 3009 + 2710=
    5719
  • 5900 + 4056=
    9956
  • 2609 + 3383=
    5992
  • 6402 + 3282=
    9684
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