501 Tangram Challenges
... you ready to face 501 challenges of the classic Tangram puzzle? Solve hundreds of built-in challenges, construct your own Tangram ... for children, because it helps to develop creative and mathematical abilities, spatial imagination, accuracy, and patience. 501 ...

Math Worm
A puzzle where you delve into a mathematical maze for answers to simple ... by completing adjacent arithmetic equations. Ideal for mathematical reinforcement for grade 3 and up. Various grade and skill levels. ...

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