Пропишите построчно цифры,чтоб запомнить ,можете сделать табличку.

Мы с ребятами пишем в таблице и запоминаем .
1-one –the first
2-two – the second
3-three – the third
4-four – the fourth
5-five – the fifth
6-six – the sixth
7-seven–the seventh
8-eight– the eighth
9-nine– the ninth
10-ten– the tenth
11-eleven– the eleventh
12-twelve– the twelfth
13-thirteen– the thirteenth
14-fourteen– the fourteenth
15-fifteen– the fifteenth
16-sixteen– the sixteenth
17-seventeen– the seventeenth
18-eighteen– the eighteenth
19-nineteen– the nineteenth
20 – twenty – the twentieth
30 – thirty – the thirtieth
40 – forty – the fortieth
50 – fifty – the fiftieth
60 – sixty – the sixtieth
70 – seventy – the seventieth
80 – eighty – the eightieth
90 – ninety – the ninetieth