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การคูณจำนวนเต็ม

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  • 7x7
    49
  • (-11)×(-8)
    88
  • (-9)×(-9)
    81
  • 3x(-4)
    -12
  • (-9)×3
    -27
  • (-6)×7
    -42
  • (-4)×9
    -36
  • 8×(-7)
    -56
  • (-5)×(-5)
    25
  • 2×(-2)
    -4
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