Falling problems

Falling problems: Background Information

SummaryFalling problems is based on the well known game Tetris. Before you start this game, you have to make two choices: the difficulty-level of the game (0-20, 0-200) and the operation. You can choose from: addition, subtraction or a combination of these two. Estimate if the values are higher or lower than the value on the red line (10,100). Move the problem to the corresponding half of the field.
Subjectnumber, estimation
Age Groupprimary education
ProgrammerStephan Wiegers, Patrick van der Wal
AuthorFrans Moerlands
Versionrevised version
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