Watch this video to learn about subtracting 4-digit numbers using the column method. Harry has worked out the following subtraction: 34,256 - 12,382 = 22,974. Is he correct? The best thing to do ...

Notice how the digits of the dividend and quotient are ‘lined-up’ with this working out, just as we would always do with column addition and subtraction ... each have a 4-digit number ...