This week in math we learnt how to round measurements to the nearest (tenths, thousands… so on). Using this method just makes doing all the equations much easier and helps you estimate the right answer. and depending on the number after the one your trying to round will determine weather or not the number gets bigger or smaller. if the number is below 5, you round down to the next number down. But if the number in 5 or above you would round up.
Ex: if you have a number with a gross decimal like (43.5639428) you can use this method to simplify the number
To the nearest tenths: 43.6
to the nearest thousandth: 43.56