The contractions for st and th should be used when writing ordinal numbers such as 1st and 4th. It should be noted that in print the second and third ordinal numbers are normally formed by adding the endings nd and rd to the cardinal numbers 2 and 3, respectively. Occasionally, however, they are represented by adding only the letter d to the cardinal number. In such cases, the letter n or r should be inserted in braille. Thus, 2d and 3d should always be transcribed 2nd and 3rd. Example:
Does Stan live on 1st, 2d, 3d or 4th Street?
Try the Drill in WESBraille.
Try the Practice in WESBraille.
Try the Exercise in WESBraille.