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1. \(\)Hoeveel minuten passen er in 4500 seconden?\(\)
2. \(\)Hoeveel seconden passen er in 6 uren? \(\)
3. \(\)Hoeveel minuten passen er in 4440 seconden?\(\)
4. \(\)Hoeveel seconden passen er in 81 minuten? \(\)
5. \(\)Hoeveel uren passen er in 3000 minuten?\(\)
6. \(\)Hoeveel seconden passen er in 21 minuten? \(\)
7. \(\)Hoeveel minuten passen er in 3180 seconden?\(\)
8. \(\)Hoeveel minuten passen er in 51 uren? \(\)
9. \(\)Hoeveel minuten passen er in 5160 seconden?\(\)
10. \(\)Hoeveel uren passen er in 349200 seconden?\(\)
11. \(\)Hoeveel seconden passen er in 48 minuten? \(\)
12. \(\)Hoeveel seconden passen er in 100 minuten? \(\)

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Verbetersleutel

1. \(4500 \text{ seconden}\\=4500:60\text{ minuten}\\=75\text{ minuten}\)
2. \(6 \text{ uren}\\=6\times3600\text{ seconden}\\=21600\text{ seconden}\)
3. \(4440 \text{ seconden}\\=4440:60\text{ minuten}\\=74\text{ minuten}\)
4. \(81 \text{ minuten}\\=81\times60\text{ seconden}\\=4860\text{ seconden}\)
5. \(3000 \text{ minuten}\\=3000:60\text{ uren}\\=50\text{ uren}\)
6. \(21 \text{ minuten}\\=21\times60\text{ seconden}\\=1260\text{ seconden}\)
7. \(3180 \text{ seconden}\\=3180:60\text{ minuten}\\=53\text{ minuten}\)
8. \(51 \text{ uren}\\=51\times60\text{ minuten}\\=3060\text{ minuten}\)
9. \(5160 \text{ seconden}\\=5160:60\text{ minuten}\\=86\text{ minuten}\)
10. \(349200 \text{ seconden}\\=349200:3600\text{ uren}\\=97\text{ uren}\)
11. \(48 \text{ minuten}\\=48\times60\text{ seconden}\\=2880\text{ seconden}\)
12. \(100 \text{ minuten}\\=100\times60\text{ seconden}\\=6000\text{ seconden}\)