三年级数学下册三《乘法》队列表演(一)习题北师大版.doc

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1队列表演(一) 一、判断题1. 一个乘数末尾有一个 0,另一个乘数末尾也有一个 0,积得末尾一定有两个0。 ( )2. 1 和任何数相乘都等于这个数本身。 ( )3. 两位数乘两位数的积可能是三位数,也可能是四位数。 ( )4. (28+12)30 与 28+1230 的计算结果相同。 ( )二、列竖式计算3819 4576 3668 三、简便运算2536 21225 7825 88125四、解决问题1. 电风扇原价 280 元,现价 190 元,学校买了 18 台,能便宜多少钱?2. 学校买回 12 套儿童读物,每套 4 本,每本 8 元,一共用去多少钱?2答案一、错 对 对 错二、722 3420 2448三、800 600 1400 11000四、1. 1620 元2. 384 元

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