三年级数学下册2《除数是一位数的除法》口算除法课堂练习新人教版.doc

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1口算除法课堂练习1比一比,做一做。63= 357= 405=603= 3507-4005=6003= 35007= 40005=答案: 2 5 820 50 80200 500 8002写出除法算式,再口算出得数。480除以 6:7除 490 0:_3600除以 9:4除 240:答案:4806=8049007=70036009=4002404-603刘叔叔的水果店里有苹果 2000千克,比桃子多 500千克,把桃子每 5千克装一袋,一共可以装几袋?答案:(2000-500)5=300(袋)4明明有 120个红球,6 个黄球,4 个白球,红球的个数是黄球的多少倍?是白球的多少倍?答案:1206=20 1204-302

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