Square root, Mathematics

14-November-2022 Monday
This watch is for those who know a little math

30-April-2020 Thursday
?. How many angles and so-called edges are there on a notebook sheet?

27-April-2020 Monday
Forest mathematics

11-June-2018 Monday
Square root

11-December-2013 Wednesday
Square root.

06-November-2013 Wednesday
cool pyramid

06-November-2013 Wednesday
Pi riddle


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