第五届聪明小机灵小学数学邀请赛(复赛)试题答案2005——凑整简便法计算8201——简便法计算99(3745)(821)(991)821820018201195——根据题目得知A最小且不可能为0B最大且不超过9而且CA4BC4A8那么只可能A为125元——平均数140减去上2302的差异即为书盒而书的价格则在平均数基础上加2302的差异15种——ABCDEF搭配54321最上一行653中间一
学而思·乐加乐
学而思·乐加乐
学而思·乐加乐
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学而思·乐加乐
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学而思·乐加乐
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