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10/21
Advanced -
Functions and Quadratic Equations II
10/21
Early Elementary I -
Roman Numerals I
10/21
Early Elementary II -
Mayan Numbers Part 1
10/21
High School I -
Gini Index
10/21
High School II -
Symmetries and Groups II (James Cameron)
10/21
Junior Circle -
Sets and Functions Part I
10/28
High School I -
Quadratic Reciprocity I
9/30 -- Beginners Circle: Casting out Nines, and other types of Math Magic
In this lesson, we look at casting of nines as an application of modular arithmetic.
Modular Arithmetic, Division, Divisibility Rules.
Handouts:
Casting out Nines, and other types of Math Magic