tenths is the first place after the decimal so we have to look at the hundredths place to determine if we need to round
2.839 3 is less then 5 so leave it alone 2.8
2.764 6 is greater than 4 so 2.8
36.89 9 is greater than 4 so 36.9
1,534.739 4 is less than 5 so 1534.7
