Great video to show for place value
Khan Academy-Adding and Subtracting Negative Numbers

Khan Academy 5 Number Summary
Number opposites | Khan Academy
This video is from Khan Academy and it is describing Eratosthenes theory about how to quick find all prime numbers. It is a system that works for all numbers.


Complex Number Khan Academy
Khan Academy Math Worksheet Real and Complex Numbers 203-212 Worksheet 4


Math Number Theory Unit LCM & GCF #homeschool #teaching #teacher #printableactivities #commoncore #mathtothecore #commoncoremath #printablemath #mathworksheets #mathgames #divisibility #GCF #LCM #factors #mathunit #numbertheory
Math On Khan Academy
Number theory / Kazuya Kato, Nobushige Kurokawa, Takeshi Saito ; translated by Masato Kuwata
This course is the continuation of 18.785 Number Theory I. It begins with an analysis of the quadratic case of Class Field Theory via Hilbert symbols, in order to give a more hands-on introduction to the ideas of Class Field Theory. More advanced topics in number theory are discussed in this course, such as Galois cohomology, proofs of class field theory, modular forms and automorphic forms, Galois representations, and quadratic forms.










One of my favorite classics in pure mathematics. Hardy’s Theory of Numbers has this unique mix of clarity and depth that makes number theory feel alive. Every time I go through it, I find something new to appreciate. Definitely one of those books that stays with you as you grow in math.
Basic Number Theory (Classics in Mathematics) by Andre Weil, http://www.amazon.com/dp/3540586555/ref=cm_sw_r_pi_dp_2E7Asb1WDRQN2
The Math Needed for Computer Science (Part 2) | Number Theory and Cryptography - YouTube
Introduction to Modern Number Theory: Fundamental Problems, Ideas and Theories (Encyclopaedia of Mathematical Sciences) by Yu. I. Manin, http://www.amazon.com/dp/3540203648/ref=cm_sw_r_pi_dp_k-5Asb0QZQRQ0
number theory