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จำนวนเต็ม

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  • (-7)+(-9)
    -16
  • ((-21)+21)+111
    111
  • (8+(-1))+13
    20
  • 102+8
    100
  • (100-70)+(-29)
    1
  • (-23)+(-77)
    -100
  • 20+((-13)+(-9))
    -2
  • (11+22)+((-14)+(-10))
    9
  • (-104)+30
    -74
  • (-29)+((-31)+21)
    -39
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