Each face has two long sides and two short sides. The five oddnumbered faces meet at the common vertex of their long sides. The five evennumbered faces meet at the common vertex of their long sides.
There seems to be a moreorless standard configuration for the numbers on such dice. If I hold such a die between my fingers at two of the vertices such that the even numbers are on top, and read the numbers from left to right in a zigzag pattern, I get: 0, 7, 4, 1, 6, 9, 2, 5, 8, 3, and back to 0. (When I hold the die this way, the odd numbers appear upsidedown.)
These dice are often sold in pairs. One die will be marked by tens from 00 through 90, and the other will have units from 0 to 9. The use of these markings is obvious; however, in practice, two dice of different colours may prove easier to read.
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