Rekenregels (reeks 1)

Hoofdmenu Eentje per keer  🖨

Pas de rekenregels toe en bereken

1. \(\log 8 + \log125\)
2. \(\log 50 + \log200\)
3. \(\log 2000 - \log2\)
4. \(\log 40 + \log0{,}00025\)
5. \(\log 500 + \log0{,}0002\)
6. \(\log 5 + \log0{,}002\)
7. \(\log 1 - \log1\)
8. \(\log 500 + \log0{,}02\)
9. \(\log 25 + \log0{,}0004\)
10. \(\log 80 + \log0{,}125\)
11. \(\log 20 + \log0{,}0005\)
12. \(\log 5 - \log0{,}5\)

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Pas de rekenregels toe en bereken

Verbetersleutel

1. \(\log 8 + \log125\\ = \log(8 \cdot 125 ) \\ = \log ( 1000) \\ =3\)
2. \(\log 50 + \log200\\ = \log(50 \cdot 200 ) \\ = \log ( 10000) \\ =4\)
3. \(\log 2000 - \log2\\ = \log(2000 : 2 ) \\ = \log ( 1000) \\ =3\)
4. \(\log 40 + \log0{,}00025\\ = \log(40 \cdot 0{,}00025 ) \\ = \log ( 0{,}01) \\ =-2\)
5. \(\log 500 + \log0{,}0002\\ = \log(500 \cdot 0{,}0002 ) \\ = \log ( 0{,}1) \\ =-1\)
6. \(\log 5 + \log0{,}002\\ = \log(5 \cdot 0{,}002 ) \\ = \log ( 0{,}01) \\ =-2\)
7. \(\log 1 - \log1\\ = \log(1 : 1 ) \\ = \log ( 1) \\ =0\)
8. \(\log 500 + \log0{,}02\\ = \log(500 \cdot 0{,}02 ) \\ = \log ( 10) \\ =1\)
9. \(\log 25 + \log0{,}0004\\ = \log(25 \cdot 0{,}0004 ) \\ = \log ( 0{,}01) \\ =-2\)
10. \(\log 80 + \log0{,}125\\ = \log(80 \cdot 0{,}125 ) \\ = \log ( 10) \\ =1\)
11. \(\log 20 + \log0{,}0005\\ = \log(20 \cdot 0{,}0005 ) \\ = \log ( 0{,}01) \\ =-2\)
12. \(\log 5 - \log0{,}5\\ = \log(5 : 0{,}5 ) \\ = \log ( 10) \\ =1\)