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1. \(\)Hoeveel minuten passen er in 4680 seconden?\(\)
2. \(\)Hoeveel seconden passen er in 68 uren? \(\)
3. \(\)Hoeveel seconden passen er in 78 minuten? \(\)
4. \(\)Hoeveel uren passen er in 39600 seconden?\(\)
5. \(\)Hoeveel uren passen er in 104400 seconden?\(\)
6. \(\)Hoeveel minuten passen er in 5880 seconden?\(\)
7. \(\)Hoeveel minuten passen er in 4800 seconden?\(\)
8. \(\)Hoeveel minuten passen er in 4980 seconden?\(\)
9. \(\)Hoeveel seconden passen er in 32 uren? \(\)
10. \(\)Hoeveel minuten passen er in 1920 seconden?\(\)
11. \(\)Hoeveel seconden passen er in 60 uren? \(\)
12. \(\)Hoeveel minuten passen er in 2220 seconden?\(\)

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Verbetersleutel

1. \(4680 \text{ seconden}\\=4680:60\text{ minuten}\\=78\text{ minuten}\)
2. \(68 \text{ uren}\\=68\times3600\text{ seconden}\\=244800\text{ seconden}\)
3. \(78 \text{ minuten}\\=78\times60\text{ seconden}\\=4680\text{ seconden}\)
4. \(39600 \text{ seconden}\\=39600:3600\text{ uren}\\=11\text{ uren}\)
5. \(104400 \text{ seconden}\\=104400:3600\text{ uren}\\=29\text{ uren}\)
6. \(5880 \text{ seconden}\\=5880:60\text{ minuten}\\=98\text{ minuten}\)
7. \(4800 \text{ seconden}\\=4800:60\text{ minuten}\\=80\text{ minuten}\)
8. \(4980 \text{ seconden}\\=4980:60\text{ minuten}\\=83\text{ minuten}\)
9. \(32 \text{ uren}\\=32\times3600\text{ seconden}\\=115200\text{ seconden}\)
10. \(1920 \text{ seconden}\\=1920:60\text{ minuten}\\=32\text{ minuten}\)
11. \(60 \text{ uren}\\=60\times3600\text{ seconden}\\=216000\text{ seconden}\)
12. \(2220 \text{ seconden}\\=2220:60\text{ minuten}\\=37\text{ minuten}\)