Decimal Subtraction: Solving 435.001 - 321.55 Step by Step

In order not to get confused when solving the exercise, we will first add the digit 0 to the number 321.550 as follows:

$435.001\\-321.550\\$

Now let's solve the exercise in order:

Let's subtract the thousands after the decimal point:

$1-0=1$

Let's subtract the hundreds after the decimal point:

$0-5=$

Since we cannot subtract, we will borrow a ten from the hundreds digit of the whole number (note that the tenths digit after the decimal point is also 0)

Now the tenths digit after the decimal point is 10, we will borrow from it a ten and get:

$10-5=5$

Let's subtract the tenths after the decimal point, remembering that we borrowed a ten, therefore:

$10-1-5=4$

Finally, let's subtract the whole numbers before the decimal point accordingly.

Let's remember that we borrowed a ten from the hundreds digit, therefore:

$5-1-1=3$

$3-2=1$

$4-3=1$

And we get:

$435.001\\-321.550\\113.451$