三年级数学下册一《除法》猴子的烦恼课堂作业北师大版.doc

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1猴子的烦恼知识要点归纳1.0 除以任何不是 O 的数都得 O。2商中间或末尾有 O 的三位数除以一位数的计算方法:三位数除以一位数,在求出商的最高位以后,除到被除数哪一位不够商 1,就对着哪一位商 O,哪一位有余数,就把余数与后一位合并继续除。备选习题1用竖式计算。5302 6404 69032口 237 的商是三位数,被除数的百位可能是( )。3除数是 5,余数最大是( )4. 540 元,可以买多少个彩球?答案1. 5302=265 6404=160 6903=2302可能是 7 8 93. 44. 123=4(元)5404=135(个)*答:540 元可以买 135 个彩球。

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