He always makes careless mistakes, and he's a pain to work with.
I made some careless mistakes in the English test.
Fails to give close attention to details or makes careless mistakes.
misses details or makes careless mistakes in her school-work or other activities
But He Wenbo from China says calculators reduce careless mistakes.
My boss found some careless mistakes in your proposal, please be more serious.
He is always brushing her down for making careless mistakes.
Do you often make careless mistakes?