1、劉翔在十一屆全運會上，又以13秒34的成績摘得110米跨欄冠軍。速度 時間和路程的關系小華步行每分鐘行60米；汽車每小時行80千米；特快列車每小時可行160千米；飛機每分鐘行20千米;海豚是游泳能手，每小時約60多千米；汽車2小時行160千米；特快列車每小時可行160千米；飛機每分鐘行20千米;小華步行5分鐘行300米；路程160千米160千米20千米300米時間2小時1小時1分鐘5分鐘速度80千米/時160千米/時20千米/分60米/分每小時行多少千米，每分鐘行多少米，每秒鐘可行多少米 都是速度。速度是指單位時間走的路程長度。光的速度每秒30萬千米。聲音傳播的速度大約是每秒340米。 60米

2、/分 60千米/時 20千米/分 160千米/時 80千米/時 小華步行每分鐘行60米；汽車每小時行80千米；特快列車每小時可行160千米；飛機每分鐘行20千米;海豚是游泳能手，每小時約60多千米；改一改1一輛汽車的速度是80千米/時，2小時可行多少千米？2李老師騎自行車的速度是225米/分，10分鐘可行多少米？例小組說一說一輛汽車的行駛速度為 60 千米/時，從甲地開往乙地需要 3 時。60 3=180 表示 180 3=60 表示180 60=3 表示 從甲地開往乙地 的路程是 180 千米。這輛汽車的速度是每小時 60 千米。汽車從甲地開往乙地用的時間是 3 小時。1唐叔叔2小時開220

3、千米，你想對他說什么？你建議唐叔叔按什么速度行駛。2照這樣的速度行駛，3小時行多少千米？3照這樣的速度行駛，300千米需要多少小時？ 從我家到學校的路程是 600 米，我步行的速度是 60 米/分，我從家出發(fā)步行 9 分鐘能否到達學校？你有多少種方法呢？請你幫幫忙拓展練習你能寫出單價、數(shù)量、總價之間的數(shù)量關系嗎？學校買了3個籃球，每個42元，一共用了多少元？Zv1HdUq(C8Pl!x3KgWs+FbRn&A6MiZv1HeUq(C9Pl!x4KgWt+FbRo&A6MjZv1HeUq(D9Pl!y4KgWt+FbSo&A6NjZv1IeUq(D9Pl$y4KgXt+FbSo&A7NjZv2I

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