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addition and subtraction

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  • 486 - 272=
    214
  • 597 -181=
    416
  • 7,899 + 2,144=
    10,043
  • 332 - 121=
    211
  • 4,567 + 256=
    4,823
  • 347 + 288 =
    635
  • 570 - 320
    250
  • 432 +432=
    864
  • 989 - 158=
    831
  • 88 + 88=
    176
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