to the nearest hundredth.
Subtract vertically, with the decimal points under each other. Put zeros to the right of the last decimal digit so each number has the same number of digits after the decimal point. Subtract from the right to the left.
To approximate to the nearest hundredths, look at the digit in the thousandths place. 9 is equal to 5 or more, so increase the digit in the hundredths place by 1 and leave out the other digits to the right.