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Programmable scientific arithmetic with saved formulas

Notes, variables and arithmetic in a browser

Laboratory calculations beside molecular-biology utilities

Scientific, graphing, fraction and matrix calculations

Scientific calculation with expression history

Scientific arithmetic, graphs and algebra tools for Windows

Multiplayer maths and language games organised by skill and school grade.

Elementary maths lessons, quizzes, games and virtual manipulatives.

Maths puzzles, logic games, spatial challenges and problem-solving activities.

Physical calculations with tracked units and exact quantities