Victoria Beckham playfully pokes fun at son Romeo as Harper seeks his assistance with her algebra 

Victoria Beckham playfully poked fun at her son Romeo on Instagram on Wednesday when his sister Harper asked him for help with her math homework.

Since numbers may not have been his forte, Victoria, 48, giggled when she posted a video of two of her kids answering an algebraic question.

Harper, 11, told Romeo, 20, “You get the value of X” as he giggled.

“Are you sure you should ask your big brother?”: Victoria Beckham playfully poked fun at son Romeo on Instagram on Wednesday when Harper sought his help with her algebra

Mother is the word! Victoria clearly has a nice relationship with her kids – stock image

Victoria said, “Romeo, can you help with Harper’s math homework?”

He said with a straight face, “Yes, it’s actually very easy. [The answer is] 12.’

Knowing he didn’t really have a clue, Victoria said, “You idiot.”

Victoria said, “Romeo, can you help with Harper’s math homework?” He said with a straight face, “Yes, it’s actually very easy. [The answer is] 12′

Knowing he didn’t really have a clue, Victoria said, “You idiot” as they all chuckled

Romeo said that he has forgotten all the things he used to learn in school.

Sharing the video, Victoria wrote on the post, “Are you sure you should ask your big brother to help you with math?”

Meanwhile, Romeo got a kiss on the cheek from a mysterious love interest when he took to his Instagram Story on Friday to share a nifty cropped photo.

It’s been a while: Romeo said he forgot all the things he used to learn in school

It comes after he was seen liking the social media snaps of his model ex-girlfriend Mia Regan, 19, following their split four months ago.

For his latest post, David and Victoria’s son looked trendy in a brown bomber jacket and sunglasses, but made sure his companion’s face was not visible.

Mia and Romeo split this summer after being together for three years.

Still, Romeo let go of tongues on Tuesday afternoon after liking an Instagram post from his ex-girlfriend.

This latest update comes four months after the couple confirmed their split and Romeo deleted all traces of London-based model Mia from his Instagram.

Back on? Romeo got a kiss on the cheek from a mysterious love interest when he took to his Instagram Story on Friday…after liking his ex-girlfriend Mia Regan’s latest post

Exes: This latest update comes four months after the couple confirmed their divorce and Romeo deleted all traces of London-based model Mia from his Instagram