Rekenregels (reeks 1)

Hoofdmenu Eentje per keer  🖨

Pas de rekenregels toe en bereken

1. \(\log 50 - \log50\)
2. \(\log 2 - \log2\)
3. \(\log 0,5 - \log5\)
4. \(\log 1 + \log0,01\)
5. \(\log 50 + \log0,02\)
6. \(\log 40 - \log40\)
7. \(\log 25000 - \log250\)
8. \(\log 25 + \log4\)
9. \(\log 5 + \log20\)
10. \(\log 10000 - \log10\)
11. \(\log 2500 - \log2,5\)
12. \(\log 0,8 - \log0,8\)

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Pas de rekenregels toe en bereken

Verbetersleutel

1. \(\log 50 - \log50\\ = \log(50 : 50 ) \\ = \log ( 1) \\ =0\)
2. \(\log 2 - \log2\\ = \log(2 : 2 ) \\ = \log ( 1) \\ =0\)
3. \(\log 0,5 - \log5\\ = \log(0,5 : 5 ) \\ = \log ( 0,1) \\ =-1\)
4. \(\log 1 + \log0,01\\ = \log(1 \cdot 0,01 ) \\ = \log ( 0,01) \\ =-2\)
5. \(\log 50 + \log0,02\\ = \log(50 \cdot 0,02 ) \\ = \log ( 1) \\ =0\)
6. \(\log 40 - \log40\\ = \log(40 : 40 ) \\ = \log ( 1) \\ =0\)
7. \(\log 25000 - \log250\\ = \log(25000 : 250 ) \\ = \log ( 100) \\ =2\)
8. \(\log 25 + \log4\\ = \log(25 \cdot 4 ) \\ = \log ( 100) \\ =2\)
9. \(\log 5 + \log20\\ = \log(5 \cdot 20 ) \\ = \log ( 100) \\ =2\)
10. \(\log 10000 - \log10\\ = \log(10000 : 10 ) \\ = \log ( 1000) \\ =3\)
11. \(\log 2500 - \log2,5\\ = \log(2500 : 2,5 ) \\ = \log ( 1000) \\ =3\)
12. \(\log 0,8 - \log0,8\\ = \log(0,8 : 0,8 ) \\ = \log ( 1) \\ =0\)