1) 10 minutes  = a) 100 seconds b) 600 seconds  2) 5 minutes 20 seconds =  a) 300 seconds b) 320 seconds 3) 300 seconds = a) 5 minutes b) 6 minutes 4) 450 seconds = a) 6 minutes 30 seconds b) 7 minutes 30 seconds 5) 9 hours = a) 540 minutes b) 450 minutes 6) 2 hour 15 minutes = a) 125 minutes b) 135 minutes 7) 600 minutes = a) 6 hours b) 10 hours 8) 190 minutes = a) 3 hours 20 minutes b) 3 hours 10 minutes 9) 150 minutes = a) 2 hours 30 minutes b) 3 hours 20 minutes 10) 8 minutes 15 seconds = a) 495 seconds b) 425 seconds

Unit Conversion Year 3

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