Deliberate column subtraction mistakes
A worksheet with a set of 8 column subtraction calculations, each with a different deliberate mistake (all except number 5, which is correct).
I searched the internet for something like this and couldn’t find one. So I had to make it.
It’s a PDF, I’m afraid, since it was easier for me to write them out by hand than work out how to do it on a computer.
There is now an answer sheet.