1) Convert 0055 hours to the 12-hour system. a) 12:55 p.m. b) 12:55 a.m. c) 1255 a.m. 2) Convert 10:40 a.m. to the 24-hour system. a) 1040 hours b) 10:40 hours c) 2240 hours 3) 5 centuries =___________ decades a) 50 b) 500 c) 5000 4) 144 hours =__________ days a) 6 b) 7 c) 8 5) 42 days =_________weeks a) 6 b) 7 c) 8 6) 3 decades =___________ years a) 30 b) 300 c) 3000 7) 5000m =____________ km a) 50 km b) 5 km c) 500 km 8) 7020m =_________ km_______m a) 70 km 200 m b) 7 km 200 m c) 7 km 20 m 9) 4 cm 2 mm = ___________ mm a) 420 mm b) 402 mm c) 42 mm 10) 68 mm =________ cm _____mm a) 6 cm 80 mm b) 6 cm 80 cm c) 6 cm 8 mm

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