Rekenregels (reeks 1)

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Pas de rekenregels toe en bereken

  1. \(\log 50 + \log0,0002\)
  2. \(\log 25 + \log0,004\)
  3. \(\log 50 + \log0,2\)
  4. \(\log 200000 - \log20\)
  5. \(\log 2 + \log0,005\)
  6. \(\log 0,2 + \log0,05\)
  7. \(\log 5 + \log200\)
  8. \(\log 0,008 - \log0,8\)
  9. \(\log 10 + \log100\)
  10. \(\log 800 - \log0,8\)
  11. \(\log 0,2 - \log2\)
  12. \(\log 2 + \log5000\)

Pas de rekenregels toe en bereken

Verbetersleutel

  1. \(\log 50 + \log0,0002\\ = \log(50 \cdot 0,0002 ) \\ = \log ( 0,01) \\ =-2\)
  2. \(\log 25 + \log0,004\\ = \log(25 \cdot 0,004 ) \\ = \log ( 0,1) \\ =-1\)
  3. \(\log 50 + \log0,2\\ = \log(50 \cdot 0,2 ) \\ = \log ( 10) \\ =1\)
  4. \(\log 200000 - \log20\\ = \log(200000 : 20 ) \\ = \log ( 10000) \\ =4\)
  5. \(\log 2 + \log0,005\\ = \log(2 \cdot 0,005 ) \\ = \log ( 0,01) \\ =-2\)
  6. \(\log 0,2 + \log0,05\\ = \log(0,2 \cdot 0,05 ) \\ = \log ( 0,01) \\ =-2\)
  7. \(\log 5 + \log200\\ = \log(5 \cdot 200 ) \\ = \log ( 1000) \\ =3\)
  8. \(\log 0,008 - \log0,8\\ = \log(0,008 : 0,8 ) \\ = \log ( 0,01) \\ =-2\)
  9. \(\log 10 + \log100\\ = \log(10 \cdot 100 ) \\ = \log ( 1000) \\ =3\)
  10. \(\log 800 - \log0,8\\ = \log(800 : 0,8 ) \\ = \log ( 1000) \\ =3\)
  11. \(\log 0,2 - \log2\\ = \log(0,2 : 2 ) \\ = \log ( 0,1) \\ =-1\)
  12. \(\log 2 + \log5000\\ = \log(2 \cdot 5000 ) \\ = \log ( 10000) \\ =4\)
Oefeningengenerator vanhoeckes.be/wiskunde 2022-06-27 07:17:39