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1. \(\)Hoeveel uren passen er in 39600 seconden?\(\)
2. \(\)Hoeveel minuten passen er in 36 uren? \(\)
3. \(\)Hoeveel uren passen er in 64800 seconden?\(\)
4. \(\)Hoeveel minuten passen er in 5760 seconden?\(\)
5. \(\)Hoeveel seconden passen er in 27 minuten? \(\)
6. \(\)Hoeveel uren passen er in 1440 minuten?\(\)
7. \(\)Hoeveel minuten passen er in 2640 seconden?\(\)
8. \(\)Hoeveel uren passen er in 259200 seconden?\(\)
9. \(\)Hoeveel minuten passen er in 5220 seconden?\(\)
10. \(\)Hoeveel seconden passen er in 74 uren? \(\)
11. \(\)Hoeveel uren passen er in 2700 minuten?\(\)
12. \(\)Hoeveel uren passen er in 5400 minuten?\(\)

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Verbetersleutel

1. \(39600 \text{ seconden}\\=39600:3600\text{ uren}\\=11\text{ uren}\)
2. \(36 \text{ uren}\\=36\times60\text{ minuten}\\=2160\text{ minuten}\)
3. \(64800 \text{ seconden}\\=64800:3600\text{ uren}\\=18\text{ uren}\)
4. \(5760 \text{ seconden}\\=5760:60\text{ minuten}\\=96\text{ minuten}\)
5. \(27 \text{ minuten}\\=27\times60\text{ seconden}\\=1620\text{ seconden}\)
6. \(1440 \text{ minuten}\\=1440:60\text{ uren}\\=24\text{ uren}\)
7. \(2640 \text{ seconden}\\=2640:60\text{ minuten}\\=44\text{ minuten}\)
8. \(259200 \text{ seconden}\\=259200:3600\text{ uren}\\=72\text{ uren}\)
9. \(5220 \text{ seconden}\\=5220:60\text{ minuten}\\=87\text{ minuten}\)
10. \(74 \text{ uren}\\=74\times3600\text{ seconden}\\=266400\text{ seconden}\)
11. \(2700 \text{ minuten}\\=2700:60\text{ uren}\\=45\text{ uren}\)
12. \(5400 \text{ minuten}\\=5400:60\text{ uren}\\=90\text{ uren}\)