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Simple 3-digit Addition and Subtraction

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  • 136 + 3
    139
  • 401 + 30
    431
  • 418 + 30
    448
  • 384 - 50
    334
  • 574 - 4
    570
  • 338 + 600
    938
  • 859 - 5
    854
  • 276 + 400
    676
  • 40 + 129
    169
  • 627 - 10
    617
  • 451 - 400
    51
  • 948 - 40
    908
  • 555 - 200
    355
  • 972 + 5
    977
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