
Krypto
Five number cards are face up. Make a true equation from them, with operations on both sides, and every card you use is yours.
4 multiplayer classroom games aligned to Common Core standard 3.OA.C.7 (often written 3.OA.7). 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.

Five number cards are face up. Make a true equation from them, with operations on both sides, and every card you use is yours.

Place square tiles so touching triangles match colors, then score the math on every matching side: add, subtract, multiply or divide.

The sequel: tiles can rotate, and squares, cubes, square roots, cube roots and jokers join the board.

Each player moves their own chip on the 1–9 row. Multiply the two chips, cover the product in your color, and get four in a row before your rival.
The All-Access Teacher License includes every game, every grade and all future games.