Write the first to twelfth ordinal numbers: 1 first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, 10,1eleventh, 6550.

Extended data:

Analysis formula: one → one, two → two, three → three have special changes, so we should remember them separately.

Eight → eight, nine → nine, eight to t, nine to e and then-th; Five → fifth, else → twelfth, fifth, twelfth, replace ve with f and add-th; Twenty → twenty, thirty → thirty ... change the suffix y to ie, and then add -th. When there are two digits, the base number is used for the ten digits and the ordinal number is used for the single digits, such as twenty-one.

Learning to write and count is the beginning of language learning. When primary school students begin to be confused, they should learn from strokes and "one, two, three"; English beginners should also learn from "ABCD" and "123".

Students often learn English numbers quickly from the beginning to improve their learning enthusiasm, and they are also afraid of difficulties because they can't remember English numbers. Therefore, when you start learning English, you should pay attention to learn its basic figures well.

References:

Baidu encyclopedia-ordinal number