Quizlet

https://quizlet.com/ColinDixon

Mental Maths

https://mathsstarters.net/quickquiz/

10 quick questions to start off with,

Stephen Von Worley

http://www.datapointed.net/visualizations/math/factorization/animated-diagrams/

When Data Pointed’s Stephen Von Worley stumbled upon a program that creates diagrams of numbers’ prime factors on Brent Yorgey’s The Math Less Traveled, he decided to take the diagrams and make them move. Upon first sight of the brilliant factors, Von Worley writes, “I knew that I should take his lovely little dots and make them dance.”