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บวกลบจำนวนเต็ม

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  • (-420) x [39 + (-40)]
    420
  • {(-12)(11)}x(-2)
    246
  • (-3)x11
    -33
  • (-496) x (-25)
    12,400
  • [ 225 x (-15) ] / (-3)
    45
  • 28 x [ -2 + (-3) ]
    -140
  • {(-4)(-9)}+{(-4).6}
    12
  • 6x(-24)
    -144
  • (-40)/5
    -8
  • 99 x (-18)
    -1,782
  • (-12)x(-9)
    108
  • (-3)(10+16)
    -78
  • 36 / (-4)
    -9
  • (20 x 8) + (20 x 12)
    400
  • 20 x 20
    400
  • (-19)10
    -190
  • (-12)x56
    -672
  • 14[10 + (-9)]
    14
  • 4 x (-35)
    -140
  • [ (-9 x 15 ) + (-21) ] / (-12)
    13
  • {(-11)+(-15)}(-10)
    260
  • [ (-54) + (-9) ] /7
    -9
  • (-36) / (-3)
    12
  • (-14)(-5)
    70
  • (-4){(-9)+6}
    12
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