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This question is not actually related to RPGs but is more of a real-world dice rolling scenario I'm looking for help with, from dice rolling experts.

I'm currently memorizing the Book of Psalms, which is divided into 150 chapters.

I'm looking for an analog, elegant way of quizzing myself, by rolling some number of dice (or whatever means, really, just nothing digital) to get a random (equally likely) number from 1 to 150.

Not being very aware of the dice world I start googling, starting with "150 sided dice" ... which would obviously do the trick in one go.

Didn't take long for me to realize there are only so many 3D shapes that lend themselves to being dice with 120 sided dice being the largest (and pretty ridiculous looking) I could find.

So it'll be some combination of things. One solution I have thought of so far would be a d30 and a d5. I would subtract one from the d5 and multiply that number by 30, resulting in 0,30,60,90,120. I would then simply add the value of the d30.

Hopefully that example gives you an idea of what I'm trying to accomplish. Apologies in advance if I'm barking up the wrong tree and this question doesn't belong. If so I'll just edit my question "A Character in my RPG is memorizing the Book of Psalms..." :)

Use a "d50" and a "d3" - which are 2d10 and 1d6

You roll 2d10 (divided by 2, round up) to make up your percentile dice of 1-100.

Dividing the result by two (round up) to makes it 1-50. (If the dice are marked 0-9, then 00 = 100).

You roll the 1d6 to determine low(1,2), middle(3,4) (+50), or high (5,6) (+100).

Result is 1-50, 51-100, 101-150.

Per your comment, you need to buy dice. Buy two ten-sided dice, and use a single regular/conventional 6-sided die.

• I suggest each of the ten sided dice be a different color: say red
  and green. Red for tens, green for ones. Rolling a red 3 and a
  green 7 yields 37. Divide by two (round up) for a 19. (or 69 or 119).

Good luck.

The most straitforward method is to roll two dice: a die for the “ones” place and another to generate 0–15 for the “tens” place. This is quick to roll, easy to read, and portable. You can do this with a pair of available dice: a 15-sided die and a ten-sided die (the latter usually numbered 0–9).

Mark the “15” on the d15 as zero: with a marker you can draw a zero over it, or black out white numerals, to remind you that this face means a zero in the “tens” place.

Then roll and read them in order:

• d15 shows 7 and the d10 shows 1 gives you 71.


• d15 shows 4 and the d10 shows 0 gives you 40.


• d15 shows 0 (the blacked-out face) and the d10 shows 1 gives you 1.


• d15 shows 14 and the d10 shows 9 gives you 149.

This pattern holds except for a result of zero on both dice: read this as 150, which otherwise won’t show up literally. (This is akin to how a pair of d10s marked 0–9 are traditionally read to roll 1–100: they’re read literally for 01–99, but when two zeroes come up that’s read as 100, completing the range.)