converting length

Question

Ramon rode his bike a distance of 8 kilometers how many cm did ramon ride his bike. 

Answer 1

1 m = 100 cm

1 km = 1000 m

 

so 1 km = 1000(100) cm = 100,000 cm

 

all the above is based upon knowledge of what the various prefixes mean in the metric system, which I suggest you memorize!