Puzzle-Box Advanced (1)

作者：Johanna Zöchbauer

Use the figures of one gray box to fill the white box in the middle. Make sure pieces touch, but do not overlap. You can drag the polygons by clicking on the gray points.

Then put them back in the box and try another one.

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Problem 2 - (Problem 9 on page 127)
B小學今星期的遲到人數
Multiplication by 2 modulo n
bar-graph-fin

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角度
旋轉
內切圓
平均數
3D 立體形

Puzzle-Box Advanced (1)

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