
Grades 1–4 · Doubles & halves
Double Trouble
Race through Twin Town with doubles, halves, near doubles and double-and-halve tricks for faster mental math.
2 multiplayer classroom games aligned to Oklahoma (OAS) standard 3.N.2.8. Pick one to practice this standard with your whole class on a smartboard or Chromebooks, with no student logins. Every game has a free demo.

Race through Twin Town with doubles, halves, near doubles and double-and-halve tricks for faster mental math.

The Thanksgiving edition of Double Trouble. Race along the Harvest Hollow Trail to the Feast Table with doubles, halves, near doubles and double-and-halve tricks.
The All-Access Teacher License includes every game, every grade and all future games.