Final answer:
To subtract decimal numbers, line up the decimal points and subtract each column from right to left.
Step-by-step explanation:
To subtract decimal numbers, line up the decimal points and then subtract each column from right to left. If there are any column differences that result in negative numbers, borrow from the next column. In this case, the subtraction would be:
64.125
− 20.370
− 43.495
− 43.755
− 43.880
− 44.495
After performing the subtraction, the result is -9.87.
Learn more about Subtracting decimal numbers