tri

Un, dau, tri, pedwar, pump, chwech, saith, wyth, naw, deg.

One, two, three, four, five, six, seven, eight, nine, ten.A1

Mae'r ewcaryotau'n ffurfio un o'r tri pharth o organebau byw.

Eukaryotes make up one of the three groups of living organisms.B1

Yma nodir pa mor effeithlon y mae ynni wedi cael ei ddefnyddio yn yr adeilad hwn dros y tri chyfnod cyfrifo diwethaf.

This tells you how efficiently energy has been used in this building over the last three accounting periods.C1

Ga i brynu tri oren?

May I buy three oranges?A1

Mae'r grŵp yn cynnwys y tri awdurdod lleol nad oes ganddynt ysgol, ond hefyd yr awdurdodau lleol—Casnewydd, Torfaen, Rhondda Cynon Taf, a Phowys—y gallai hynny effeithio arnynt hefyd.

The group consists of the three local authorities that don’t have a school, but also the local authorities—Newport, Torfaen, Rhondda Cynon Taf, and Powys—that might be affected by that, as well.C1