One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
It is a group or collection of well defined, distinct objects.
What do we call the objects or members of a set?
What is a set?
Which method describes a set using words or a statement?
What method of writing a set describes its elements by stating a common property or condition?
What method of writing a set lists all its elements inside braces?
In the notation below, what does the symbol | mean? A={x | x is an even number}
Which set-builder notation represents the set of vowels in the English alphabet?
Let A={2,4,6,8}. How many elements does set A have?
Let B={a,e,i,o,u}. How many elements does set B have?
Let C={1,3,5,7,9,11}. How many elements does set C have?
Which is the roster or listing form of the set of vowels in the English alphabet?
Which is the roster or listing form of the set of months that begin with the letter J?
Let A={2,4,6,8,10}. What type of set is A?
Which of the following is an infinite set?
What type of set contains no elements?
What do you call a set that has a limited or countable number of elements?
What type of set contains an unlimited number of elements?
What type of set contains all the elements being considered in a particular situation or context?
What is the cardinality of a set?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.