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คณิตศาสตร์ ม.1

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  • 92+[13+(-43)]
    62
  • 100+[(-77)+39]
    62
  • |-10|+(-9)+(-4)
    -3
  • (-12)+(-15)+(-30)
    -57
  • 82+[(-32)+(-41)]
    9
  • |-23|+[21+(-10)]
    34
  • [47+(-30)]+(-2)
    15
  • [|-19|+|4|]+|-50|
    73
  • [|54|+|-6|]+60
    120
  • (-15)+[34+(-12)]
    7
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