posted by Rachael .
A student measures the mass of a book as 12,321g. What is the book's mass in kg?
to convert to kg
thanks, buti don't understand where to put the decimal in the answer!
Hm..the decimal point?
12,321g (1kg/1000g)= 12.321kg
You can divide 12,321 by 1,000 on your calculator. What do you get?
Or -- since you're dividing by 1,000 which has has 3 zeroes, move the decimal point 3 places to the left.
Does your answer make sense? Would you expect the book to have more or less grams than kilograms?