一条小学数学简便计算题【12点了,急死!】45*(45分之2-23分之1)*23 简便 有人么?急!
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![一条小学数学简便计算题【12点了,急死!】45*(45分之2-23分之1)*23 简便 有人么?急!](/uploads/image/z/2674960-16-0.jpg?t=%E4%B8%80%E6%9D%A1%E5%B0%8F%E5%AD%A6%E6%95%B0%E5%AD%A6%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E9%A2%98%E3%80%9012%E7%82%B9%E4%BA%86%2C%E6%80%A5%E6%AD%BB%21%E3%80%9145%2A%2845%E5%88%86%E4%B9%8B2-23%E5%88%86%E4%B9%8B1%29%2A23+%E7%AE%80%E4%BE%BF+++++++++++++++++++++++++++++++++++++%E6%9C%89%E4%BA%BA%E4%B9%88%3F%E6%80%A5%21)
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