Puzzles and Games
Sudoku puzzles:
http://www.websudoku.com/
http://www.websudoku.com/
Various math puzzles
https://www.mathsisfun.com/games/puzzle-games.html
https://www.mathsisfun.com/games/puzzle-games.html
elimination grids
Cool art/math activity - you will need a compass, paper, pencil and coloring utensils: How to draw a Mandala
Word Jumble puzzle game: https://fun.chicagotribune.com/game/tca-jumble-kids