Hilary Duff says she's struggling to help her 7-year-old son with homework.

The childhood actress and "Lizzie McGuire" star shared Saturday on Instagram that her "real" education came to an early end, which makes it difficult to help her second-grader, Luca, with homework.

Mother and son puckered up for a selfie over what looks like school papers.

Duff writes, "This guy with his spirit and kindness💔Homework is already no joke in 2nd grade. I stopped going to 'real' school in 3rd grade so I’m actually doomed ... I am left scratching my head alll the time looking at his homework and I’m terrified for next year!"

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Many of the 32-year-old mom's followers were sympathetic, saying math in particular is a stumper, no matter how many years of education.

"I know about the homework struggle," @dmuffley wrote. "My boy is in the 3rd grade and I'm googling for help!"

Duff responded: "I send picture to my fiance while he is working ... like did we do this right?"

Luca is Duff's son with her ex-husband, professional hockey player Mike Comrie.

Duff also is mother to Banks Violet, who will turn 1 on Oct. 25. Her father is Matthew Koma. Duff and Koma announced their engagement in May.

Disney recently announced a Disney+ reboot of "Lizzie McGuire," with Duff playing a millennial trying to navigate life in New York City.

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