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Percent
http://www.aaastudy.com/rat68_x3.htm
https://www.mathplayground.com/percent_shopping.html
https://www.quia.com/mc/832732.html
Equations
http://www.math-play.com/One-Step-Equation-Game.html
http://www.math-play.com/Equation-Game.html
https://www.quia.com/rr/4096.html
http://www.math-play.com/Two-Step-Equations-Game.html
http://www.xpmath.com/forums/arcade.php?do=play&gameid=64
Integers
http://www.xpmath.com/forums/arcade.php?do=play&gameid=49
http://nlvm.usu.edu/en/nav/frames_asid_162_g_3_t_1.html?from=category_g_3_t_1.html
http://www.math-play.com/Integers-Jeopardy/Integers-Jeopardy.html
https://www.mathwizz.com/integers/page3.htm
https://www.mathplayground.com/numberballs.html
https://www.mathplayground.com/ASB_IntegerWarp.html
https://www.mathplayground.com/ASB_OrbitIntegers.html
http://www.math-play.com/multiplying-and-dividing-integers-game.html
http://www.math-play.com/integers-game.html
Order of Operation
http://cemc2.math.uwaterloo.ca/mathfrog/english/kidz/order.shtml
Exponents
http://www.math-play.com/Exponents-Jeopardy/Exponents-Jeopardy.html
http://www.aaastudy.com/exp-eval-exp.htm
http://www.bbc.co.uk/schools/gcsebitesize/maths/activities/flash/snap_powers/snap_powers.shtml
Coordinate Plane
http://www.math-play.com/Coordinate-Plane-Jeopardy/Coordinate-Plane-Jeopardy.html
https://www.mathplayground.com/spaceboyrescue.html
http://www.math-play.com/Coordinate%20Plane%20Game/Coordinate%20Plane%20Game.html
http://www.slidermath.com/rpoly/Coord1b.shtml
http://mrnussbaum.com/stockshelves
http://www.math-play.com/coordinate-plane-game.html
https://www.quia.com/cz/9609.html?AP_rand=1241547380