Carol wrote: “Some days are tough, today was one of them. Today was my amazing Mum’s funeral.
“Rest In Peace Jean Vorderman. You will always be loved.”
The star announced Jean had been diagnosed with terminal cancer back in March, sharing an emotional update on Mother’s Day.
She wrote: “This [week] Mum and I found out she has terminal cancer. She’s 88, beautiful inside and out and I love her beyond measure.”
Carol lived with her mother in Bristol and had always spoken about their close relationship during her presenting career, particularly when she served as an anchor on the ‘Loose Women’ panel.
In fact, it was Jean who first sent off her application to star in ‘Countdown’ back in the early 1980s, after seeing an advert in the newspaper calling for a woman with good mathematical skills for the job.
Carol’s mum has previously battled cancer on more than one occasion, with the star revealing in the summer of 2015 that her mum was undergoing a third operation, though she insisted at the time that it had been “minor” compared to past procedures.