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นักสืบน้อยตามรอย ...

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    นักสืบน้อยตามรอยตัวเลข
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  • 15,340 + x = 68,598
    53,258
  •  10
  • 48,340 – x = 36,253
    12,087
  •  15
  • X + 29,979 = 62,710
    32,731
  •  20
  • X – 44,278 = 28,932
    73,210
  •  20
  • 42,719 + x = 125,157
    82,438
  •  5
  • X – 318,551 = 596,256
    914,807
  •  25
  • X + 5 = 25
    20
  •  5
  • X + 654 = 655
    1
  •  10
  • X- 9,486 = 12,121
    21,607
  •  25
  • 2,222 + x = 34,343
    32,121
  •  20
  • 5 – x = 1
    4
  •  25
  • 9,999 – X = 1,111
    8,888
  •  10
  • 123 + X = 579
    456
  •  10
  • 4,568 + X = 4,568
    0
  •  25