'Calculations in Markdown (Python, Jupyter Notebook)

I'm looking for solution to perform small calculations in text in Python Jupyter Notebook.

for example:
What to add in this sentence

The difference between sth and sth is 32-11.

to have and effect

The difference between sth and sth is 21.

I know that in R this would be:

The difference between sth and sth is `r 32-11`.

Sources

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Solution	Source