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Adding and subtracting 3 Digit numbers

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  • 300+74
    374
  • 1000-526
    474
  • 348+239
    587
  • 500-234
    266
  • 78+19
    97
  • 905+95
    1,000
  • 437+324
    761
  • 400-263
    137
  • 38+44
    82
  • 75+823
    898
  • 406-181
    225
  • 790-272
    518
  • 100-57
    43
  • 124+563
    687
  • 195+172
    367
  • 413+587
    1,000
  • 1000-95
    905
  • 287-193
    94
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