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2年の計算

何十、何百 の 計算(2)

  • 800 + 5 = 805
  • 300 + 200 = 500
  • 800 + 400 = 1200
  • 700 + 6 = 706
  • 900 + 300 = 1200
  • 300 + 6 = 306
  • 500 + 100 = 600
  • 300 + 300 = 600
  • 600 + 9 = 609
  • 500 + 50 = 550
  • 500 - 500 = 0
  • 500 - 400 = 100
  • 800 - 200 = 600
  • 900 - 300 = 600
  • 900 - 100 = 800
  • 500 - 200 = 300
  • 800 - 300 = 500
  • 1000 - 200 = 800
  • 800 - 200 = 600
  • 600 - 100 = 500