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tommy.chan
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Pythagorean Theorem Task 1 and 2
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tommy.chan
Pythagorean Theorem Task 3
Activity
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Pythagorean Theorem
Activity
tommy.chan
Pythagorean Theorem
Activity
tommy.chan
認識分數
Activity
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數的組合(探究)
Activity
tommy.chan
數的組合 (簡易)
Activity
tommy.chan
計算減法
Activity
tommy.chan
