Khan Academy Variables and Proportions and some Multiplication Practice

Multiplication Games (pic some games and get going!)
http://www.multiplication.com/games

Variables
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-variables-expressions

Proportions
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/v/analyzing-and-identifying-proportional-relationships-ex1