楼主: 沪畅爸
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[数学小作坊] 2-5B-沪-畅爸1212女二-007-09 |
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点评
好@周二-豫小雨妈1008女五:橡皮法操作的关键是孩子要按照要求,盖住答案,自己计算,然后核对。没发现错误,可能是操作方式不到位,也可能孩子..
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