Answers

2014-09-26T14:29:16+08:00
50,000 dm

5 km * [(10,000 dm)/1 km]
cancel the unit "km", the remaining unit is "dm"
5 * 10,000 dm
= 50,000 dm
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2014-09-26T19:43:18+08:00
5000 only
each dm of km is 1000
so , 1000 × 5 = 5000
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