奥数题六年级化繁为简73*(74/75)
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![奥数题六年级化繁为简73*(74/75)](/uploads/image/z/11671288-16-8.jpg?t=%E5%A5%A5%E6%95%B0%E9%A2%98%E5%85%AD%E5%B9%B4%E7%BA%A7%E5%8C%96%E7%B9%81%E4%B8%BA%E7%AE%8073%2A%2874%2F75%29)
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奥数题六年级化繁为简73*(74/75)
奥数题六年级化繁为简73*(74/75)
奥数题六年级化繁为简73*(74/75)
73×74/75
=(75-2)×74/75
=75×74/75-2×74/75
=74-2×74/75
=74-2+2/75
=72又2/75