The last issue brought some interesting knowledge about board game playing dices. This issue continues to introduce.

1.Percentile Dice Explained

Percentile dice is also called D100 board game dice. This is not actually a singular die, but two dice. Each dice has ten faces. One of the ten-sided dice is marked with the numbers 0-9. And the other ten-sided die will be 00-90 in multiples of 10.
One die shows the digital number, and the other tells what the number is. So, for example, if the board game playing dices shows 70 and 9, the roll will have a value of 79.
Non-specified dice cannot clearly specify the digital number die, so you can use two different colored discounts to distinguish which represents which number.
However, some results are not so simple. Usually, a roll of 00 means that there is no value in the tens position. Therefore, a roll of 00 and 1 means the value is 1.

More troublesome situations

When the upright numbers show 00 and 0, it is more tricky. Now, you might be thinking, “Obviously it’s 0.” You might even want to treat it as 100, which is common. However, in this case, it will actually be 10. You can’t roll zero in Dungeons and Dragons (or in a D20 system).
The bottom line is that you should treat the 0 on the number die as a 10. It’s the only way to be consistent and get to the 1-100 range.
It can be a little confusing, but you can use the following chart for some common rolls, and what they end up being.

Designated Percentile Dice
Tens Die	Ones Die	Percentile Result
00	0	10
90	0	100
40	0	50
00	8	8
Standard d10 Dice
Tens Die	One Die	Percentile Result
10	10	100
5	6	56
1	10	10