Tenth is the first digit to the right of the decimal point.
Rounding means to cut off the digits to the right of the digit you are rounding to.
If the digit after that is 5 or higher, you round up, meaning you increase the digit you are rounding to by one.
If the digit after that is 4 or less, you round down, meaning you leave the digit you are rounding to alone.
In our case the second digit (the digit after the one we are rounding to) is an 8. Thus we round the 1 tenth up to 2 tenths:
60.2
