Rekenregels (reeks 1)

Hoofdmenu Eentje per keer  🖨

Pas de rekenregels toe en bereken

1. \(\log 1 + \log10\)
2. \(\log 0,02 - \log0,2\)
3. \(\log 0,1 - \log1\)
4. \(\log 0,04 - \log4\)
5. \(\log 2 + \log0,005\)
6. \(\log 400 - \log40\)
7. \(\log 8 + \log125\)
8. \(\log 0,5 + \log200\)
9. \(\log 0,8 - \log8\)
10. \(\log 100 + \log0,0001\)
11. \(\log 2 + \log50\)
12. \(\log 0,8 + \log0,0125\)

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Pas de rekenregels toe en bereken

Verbetersleutel

1. \(\log 1 + \log10\\ = \log(1 \cdot 10 ) \\ = \log ( 10) \\ =1\)
2. \(\log 0,02 - \log0,2\\ = \log(0,02 : 0,2 ) \\ = \log ( 0,1) \\ =-1\)
3. \(\log 0,1 - \log1\\ = \log(0,1 : 1 ) \\ = \log ( 0,1) \\ =-1\)
4. \(\log 0,04 - \log4\\ = \log(0,04 : 4 ) \\ = \log ( 0,01) \\ =-2\)
5. \(\log 2 + \log0,005\\ = \log(2 \cdot 0,005 ) \\ = \log ( 0,01) \\ =-2\)
6. \(\log 400 - \log40\\ = \log(400 : 40 ) \\ = \log ( 10) \\ =1\)
7. \(\log 8 + \log125\\ = \log(8 \cdot 125 ) \\ = \log ( 1000) \\ =3\)
8. \(\log 0,5 + \log200\\ = \log(0,5 \cdot 200 ) \\ = \log ( 100) \\ =2\)
9. \(\log 0,8 - \log8\\ = \log(0,8 : 8 ) \\ = \log ( 0,1) \\ =-1\)
10. \(\log 100 + \log0,0001\\ = \log(100 \cdot 0,0001 ) \\ = \log ( 0,01) \\ =-2\)
11. \(\log 2 + \log50\\ = \log(2 \cdot 50 ) \\ = \log ( 100) \\ =2\)
12. \(\log 0,8 + \log0,0125\\ = \log(0,8 \cdot 0,0125 ) \\ = \log ( 0,01) \\ =-2\)