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rounding off

rounding off or approximating a deimal number to a given number of decimal places... It is the quickest way to approximate a number
from minutes to hours... you divide by 60
hour to minuts... you multiply by 60
1h 60 min.
73,856 is egual to 7,39 x 10
2m is egual to 200 cm x 100
if you want to change millimetre to metre you divide by 1000
kilometre to millimetre you multiply by 1000 x 1000
Created by: Elena Mustacchia