One, two, three, four, five, six, seven, eight, nine, ten, etc
Counting backwards is similar but backwards. For example:
Ten, nine, eight, seven, six, five, four, three, two, one.
Counting is taught to absolute-beginner level learners of English, particularly young children. Older English language learners will have learnt to count in their native language by the time they have to learn to count in English.