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All CA3 subjects
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Mae Cyfnod Allweddol 3 yn cynrychioli’r tair blynedd cyntaf yn addysg ysgolion uwchradd Cymru, ar gyfer disgyblion 11-14 blwydd oed.
Part of Learn & revise
View your favourite subjects and get revising quicker.
These subjects may contain both guides and videos.
