# 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 '18 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 '18 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 '18 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 '18 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 '18 at 17:21

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