奧數題4

in #cn • 6 years ago

第三題那麼簡單的題目，他居然套公式，一看就是沒有理解。我和他解釋，甲和乙原本有80千米，每小時他們之間的差距縮小20千米，過4個小時差距為零，就是甲追上了乙。說到最後實在是火大，使勁把筆扔了出去。我也不明白，他在勤思班看著挺好的，怎麼教起來那麼吃力

Posted using Partiko Android

#math #partiko
6 years ago in #cn by
$0.03
  • Past Payouts $0.03, 0.00 TRX
  • - Author $0.02, 0.00 TRX
  • - Curators $0.01, 0.00 TRX
8 votes
Reply 1
Sort:  
  • Trending
    • [-]
     6 years ago 

    Congratulations @cicadaluo! You have completed the following achievement on the Steem blockchain and have been rewarded with new badge(s) :

    You made more than 50 upvotes. Your next target is to reach 100 upvotes.

    Click here to view your Board
    If you no longer want to receive notifications, reply to this comment with the word STOP

    Support SteemitBoard's project! Vote for its witness and get one more award!

    $0.00
      Reply

      Coin Marketplace

      STEEM 0.17
      TRX 0.15
      JST 0.028
      BTC 60385.82
      ETH 2321.90
      USDT 1.00
      SBD 2.51