The opposite sides of a dice always add up to

Answer:

First, this will depend on the layout and geometry of the die in question. The most common dice have sides numbered from 1..N, where N is the number of sides on the die. If opposite sides exist, the N side is opposite the 1 side, the N-1 side is opposite the 2 side, etc. With this layout, the sum of the opposite sides (if it exists) will be one higher than the total number of sides on the die.

So a 6-sided die with standard layout will normally have opposing sides that add to 7.

Similarly, on a typical 10-sided die they’d add to 11. A typical 20-sided die (used, for instance, in Dungeons and Dragons) will have the 20 opposite the 1, the 19 opposite the 2, etc, with opposite sides adding to 21.

Note that I said “if it exists” above: on a tetrahedral-style 4-sided die (center above), for instance, there are no “opposite sides”.

But not all dice use that style of layout. Sometimes the numbers are laid out differently out of sheer ignorance. Sometimes a number is doubled in an attempt at cheating.

Sometimes they’re layed out differently on purpose, for non-nefarious reasons.

Spindown dice are used to track increasing/decreasing numbers in some games, notably Magic: The Gathering. They’re designed so that it’s easy to rotate up/down to the next highest/lowest number, rather than in a way meant to help randomize results when rolled.

On such a die, the 1 and the 20 are often adjacent rather than opposing, and opposing sides don’t have a constant sum:

Moreover, not all dice even contain a series of numbers from 1..N.

Some don’t have numbers at all: Fudge/Fate dice, for instance, have 6 sides: two have minus signs, two are blank, and two have plus signs.

Some do have numbers, but in some other distribution: a percentile die has sides labelled 00, 10, 20, 30, etc (top of the picture above). A backgammon doubling cube die has sides labelled 2, 4, 8, 16, 32, and 64.

If you add the two numbers on the opposite sides of a 12-sided dice together, what total do you always get?

Why do opposite sides of a die always add to 7?

What is the dice with the most sides ever?

Which number is opposite to the 2 on a die?

Why are dice always built to have specific numbers that add up to one more than the total number of sides on opposite sides? Is this history or balance?

How many sides are on your dice?

(Yes, I, too, like to say “dice” when the singular word is actually “die” … one die, two dice, three grammar police)

The sum of the opposite sides of the dice will probably be one greater than the number of sides.

What are the lowest and highest numbers on the die?

The sum of the opposite sides of the die will probably be the sum of those two numbers.

Let’s look at some dice:

The numbers on the D120 die go from 1 to 120. The opposite sum is 121.

sides + 1 = 121 → right

lowest + highest = 121 → right

The numbers on the D10 go from 0 to 9. The opposite sum is 9.

sides + 1

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You tell me: what do the opposite sides of these dice add up to?

Dice come in many shapes, and have different arrangements of numbers. Some don’t have numbers at all. There is nothing that opposite sides of dice always add up to.

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What do opposite faces of a die always add up to?

What is a 12 sided dice called?

What is a 20-sided dice called?

Why do dice only have six sides?

What is a 20 sided dice called?

Well, for the common six-faced /six sided dice any two opposite side numbers have an algebraic sum of 7

Eg, on the six-faced dice, face 6 and 1 are opposites and their algebraic sum is 7. This holds for the rest of the opposite faces

top/bottom - right/left and back/front each equal seven and three x seven = 21, the sum of the six sides of a single die.

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There is only one possible value between 1+1=2 and 6+6=12: their mean (2+12)/2=7 In fact: 1+6=2+5=3+4=7.

They add up to 7.

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Step-by-step explanation:

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