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1. \(\)Hoeveel minuten passen er in 1260 seconden?\(\)
2. \(\)Hoeveel seconden passen er in 80 minuten? \(\)
3. \(\)Hoeveel uren passen er in 720 minuten?\(\)
4. \(\)Hoeveel minuten passen er in 4800 seconden?\(\)
5. \(\)Hoeveel uren passen er in 93600 seconden?\(\)
6. \(\)Hoeveel uren passen er in 2700 minuten?\(\)
7. \(\)Hoeveel uren passen er in 223200 seconden?\(\)
8. \(\)Hoeveel uren passen er in 5040 minuten?\(\)
9. \(\)Hoeveel seconden passen er in 54 minuten? \(\)
10. \(\)Hoeveel uren passen er in 291600 seconden?\(\)
11. \(\)Hoeveel uren passen er in 14400 seconden?\(\)
12. \(\)Hoeveel minuten passen er in 1740 seconden?\(\)

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Verbetersleutel

1. \(1260 \text{ seconden}\\=1260:60\text{ minuten}\\=21\text{ minuten}\)
2. \(80 \text{ minuten}\\=80\times60\text{ seconden}\\=4800\text{ seconden}\)
3. \(720 \text{ minuten}\\=720:60\text{ uren}\\=12\text{ uren}\)
4. \(4800 \text{ seconden}\\=4800:60\text{ minuten}\\=80\text{ minuten}\)
5. \(93600 \text{ seconden}\\=93600:3600\text{ uren}\\=26\text{ uren}\)
6. \(2700 \text{ minuten}\\=2700:60\text{ uren}\\=45\text{ uren}\)
7. \(223200 \text{ seconden}\\=223200:3600\text{ uren}\\=62\text{ uren}\)
8. \(5040 \text{ minuten}\\=5040:60\text{ uren}\\=84\text{ uren}\)
9. \(54 \text{ minuten}\\=54\times60\text{ seconden}\\=3240\text{ seconden}\)
10. \(291600 \text{ seconden}\\=291600:3600\text{ uren}\\=81\text{ uren}\)
11. \(14400 \text{ seconden}\\=14400:3600\text{ uren}\\=4\text{ uren}\)
12. \(1740 \text{ seconden}\\=1740:60\text{ minuten}\\=29\text{ minuten}\)