Noun
consequential mark (plural consequential marks)
(education) A mark awarded to a student when assessing their work, on the basis that they followed the correct method despite arriving at an incorrect result or conclusion due to an earlier error in the work.
I wrote 5 instead of 6 on the second line of my working, so my answer came out as –4 instead of 30, but thanks to consequential marks I still got 4 marks out of 6.