How many dots on a full set of dominoes?

Domino Sets

There are currently five major domino sets commercially available. They are Double Six, Double Nine, Double Twelve, Double Fifteen, and Double Eighteen. Here are the number of tiles and points (pips or spots) in each set through Double Twenty-Four. The largest commercially available set is the double 18.



Double 6: 28 tiles, 168 pips.

Double 9: 55 tiles, 495 pips.

Double 12: 91 tiles, 1092 pips.

Double 15: 136 tiles, 2040 pips.

Double 18: 190 tiles, 3420 pips.

Generally the most commonly used sets are Double Sixes and Double Nines, though the other three sets are more popular for games involving several players or for players looking for long domino games.How many dots on a full set of dominoes?
TO MANY DOTS I AM ALREADY DOTTY DOT DOT DOT .........How many dots on a full set of dominoes?
Assume "regular set" means the "Double-6 set."

Possible pieces (tiles):

0-0, 0-1, 0-2, 0-3, 0-4, 0-5, 0-6

1-1, 1-2, 1-3, 1-4, 1-5, 1-6

2-2, 2-3, 2-4, 2-5, 2-6

3-3, 3-4, 3-5, 3-6

4-4, 4-5, 4-6

5-5, 5-6

6-6



For the blanks: 0 + 1 + 2 + 3 + 4 + 5 + 6 = 21

For the ones: 2 + 3 + 4 + 5 + 6 + 7 = 27

For the twos : 4 + 5 + 6 + 7 + 8 = 30

For the threes: 6 + 7 + 8 + 9 = 30

For the fours: 8 + 9 + 10 = 27

For the fives: 10 + 11 = 21

For the sixes: 12



Sum it up and you get 168

xenon