the easy way to think about it is that by dividing by 10^3 you are actually multipling by 1/10^3 which you can write as 10^-3 and the negative means that the decimal place moves to the left. so we move the decimal places (which is to the right of the 4 in the number above) 3 places to the left giving us: 6.714
6.6. 2.2*3= 6.6
i hope this makes since
16.22 because two twenty dollar Bill's equals 40 then subtract 23.78 which equals 16.22
