Rekenregels (reeks 1)

Hoofdmenu Eentje per keer 

Pas de rekenregels toe en bereken

  1. \(\log 80000 - \log80\)
  2. \(\log 2{,}5 + \log0{,}4\)
  3. \(\log 20000 - \log200\)
  4. \(\log 2{,}5 - \log250\)
  5. \(\log 10 + \log1\)
  6. \(\log 50 + \log0{,}0002\)
  7. \(\log 80 + \log0{,}000125\)
  8. \(\log 2500000 - \log250\)
  9. \(\log 500 - \log50\)
  10. \(\log 80 + \log12{,}5\)
  11. \(\log 5 + \log0{,}2\)
  12. \(\log 20 + \log5\)

Pas de rekenregels toe en bereken

Verbetersleutel

  1. \(\log 80000 - \log80\\ = \log(80000 : 80 ) \\ = \log ( 1000) \\ =3\)
  2. \(\log 2{,}5 + \log0{,}4\\ = \log(2{,}5 \cdot 0{,}4 ) \\ = \log ( 1) \\ =0\)
  3. \(\log 20000 - \log200\\ = \log(20000 : 200 ) \\ = \log ( 100) \\ =2\)
  4. \(\log 2{,}5 - \log250\\ = \log(2{,}5 : 250 ) \\ = \log ( 0{,}01) \\ =-2\)
  5. \(\log 10 + \log1\\ = \log(10 \cdot 1 ) \\ = \log ( 10) \\ =1\)
  6. \(\log 50 + \log0{,}0002\\ = \log(50 \cdot 0{,}0002 ) \\ = \log ( 0{,}01) \\ =-2\)
  7. \(\log 80 + \log0{,}000125\\ = \log(80 \cdot 0{,}000125 ) \\ = \log ( 0{,}01) \\ =-2\)
  8. \(\log 2500000 - \log250\\ = \log(2500000 : 250 ) \\ = \log ( 10000) \\ =4\)
  9. \(\log 500 - \log50\\ = \log(500 : 50 ) \\ = \log ( 10) \\ =1\)
  10. \(\log 80 + \log12{,}5\\ = \log(80 \cdot 12{,}5 ) \\ = \log ( 1000) \\ =3\)
  11. \(\log 5 + \log0{,}2\\ = \log(5 \cdot 0{,}2 ) \\ = \log ( 1) \\ =0\)
  12. \(\log 20 + \log5\\ = \log(20 \cdot 5 ) \\ = \log ( 100) \\ =2\)
Oefeningengenerator wiskundeoefeningen.be 2025-07-31 10:44:52
Een site van Busleyden Atheneum Mechelen