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乘法

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  • 7x100
    700
  • 1000x15
    15000
  • 100x100
    10000
  • 234x10=2340(234 是被乘數， 10是乘數， 2340是什麼
    積
  • 200x10
    2000
  • 50x50
    2500
  • 12x1000
    12000
  • 300x20
    6000
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