三道简便计算奥数题一、1x3x24+2x6x48+3x9x72------------------------------1x2x4+2x4x8+3x6x12二、(1+1/2+1/3+1/4)x(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)x(1/2+1/3+1/4)三、(1+1/2)x(1+1/4)x(1+1/6)x(1+1/8)x(1+1
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![三道简便计算奥数题一、1x3x24+2x6x48+3x9x72------------------------------1x2x4+2x4x8+3x6x12二、(1+1/2+1/3+1/4)x(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)x(1/2+1/3+1/4)三、(1+1/2)x(1+1/4)x(1+1/6)x(1+1/8)x(1+1](/uploads/image/z/296974-46-4.jpg?t=%E4%B8%89%E9%81%93%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%A5%A5%E6%95%B0%E9%A2%98%E4%B8%80%E3%80%811x3x24%2B2x6x48%2B3x9x72------------------------------1x2x4%2B2x4x8%2B3x6x12%E4%BA%8C%E3%80%81%EF%BC%881%2B1%2F2%2B1%2F3%2B1%2F4%EF%BC%89x%EF%BC%881%2F2%2B1%2F3%2B1%2F4%2B1%2F5%EF%BC%89-%EF%BC%881%2B1%2F2%2B1%2F3%2B1%2F4%2B1%2F5%EF%BC%89x%EF%BC%881%2F2%2B1%2F3%2B1%2F4%EF%BC%89%E4%B8%89%E3%80%81%EF%BC%881%2B1%2F2%EF%BC%89x%EF%BC%881%2B1%2F4%EF%BC%89x%EF%BC%881%2B1%2F6%EF%BC%89x%EF%BC%881%2B1%2F8%EF%BC%89x%EF%BC%881%2B1)
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