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การบวก (ท้ายทาย)

  •   0%
  •  0     0     0

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  • (–1) + (–2) + (–3) + (–4)
    -10
  • –1,000 + 700 + 300 + (–50)
    -50
  • –10 + (–20) + (–30) + 70
    10
  • –10 + 5 + (–8) + 3
    -10
  • (–100) + (–200) + 400 + (–50)
    50
  • 1,000 + (–999) + (–1)
    0
  • –100 + 60 + (–40)
    -80
  • –123 + 456 + (–333)
    0
  • 100 + (–90) + (–15) + 5
    0
  • (–75) + (–25) + (–100
    -200
  • –350 + 200 + (–100) + 50
    -200
  • –200 + (–150) + 300
    -50
  • (–12) + 25 + (–8)
    5
  • (–500) + (–200) + (–100) + 800
    0
  • 10 + (–5) + (–15) + (–20)
    -30
  • 45 + (–30) + (–20)
    -5
  • –20 + (–30) + 60 + (–10)
    0
  • 500 + (–300) + (–150)
    50
  • –250 + 400 + (–75)
    75
  • –999 + 999
    0
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