cyfnod allweddol 1
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Sut i Ddisgleirio a Chael Hwyl mewn Mathemateg
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Sut i Ddisgleirio mewn Ymchwiliadau Gwyddonol
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Sut i Ddisgleirio mewn Bondiau Rhif
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Sut i Ddisgleirio mewn Dechrau Lluosi a Rhannu
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Sut i Ddisgleirio mewn Cyfrif hyd at 10
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Sut i Ddisgleirio mewn Adio a Thynnu hyd at 20
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Sut i Ddisgleirio Adeg y Nadolig
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