The months of the year : January, February, March, April, May, June, July, August, September, October, November, December.
The days of the week : Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.
Number-words : One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen (16), twenty (20), twenty-one . . . thirty (30), forty (40), fifty (50) . . . hundred (100), thousand (1,000), million (1,000,000).
once (one time) , twice (two times) , half (½) , quarter (¼).
third (number 3 in order) , fourth (number 4 in order) , fifth (number 5 in order).