# Maths equation: 357568588-11 = ~357568584.858

Move one line and make this true: $357568588-11 =$ ~ $357568584.858...$

No cross through the "=" sign stuff.

Hint:

It can be ANY line

• I'm not sure what you mean by line. Are you referring to any straight line, or any single digit? Like can I move the top of the 7 making it a / and moving the top part elsewhere?
– Tas
Sep 3, 2018 at 21:35
• @Tas the question's hint tells you that, and it's been answered. Nicely, the line can keep its shape. Sep 3, 2018 at 21:41
• To a mathematician (who is not a topologist), a "line" is always a straight line. You are thinking about a curve. Sep 4, 2018 at 16:59
• @AndreasRejbrand This is interesting. In Brazil, in Math contexts, you rarely refer to that shape as a "line" - instead, you use the name "Reta", which specifically means a straight line. If written in portuguese, this puzzle would be far easier to figure out since your brain wouldn't link the math straight line and the word line immediately. Sep 4, 2018 at 17:07
• Well, in English this distinction is commonly used. See, for example, en.wikipedia.org/wiki/Line_(geometry) and en.wikipedia.org/wiki/Curve. And en.wikipedia.org/wiki/List_of_curves. Sep 4, 2018 at 17:21

the tilde (~) and place it "on top" of the 11 to make the mathematical symbol $\pi$: $357568588−\pi = 357568584.858...$