mscroggs.co.uk
mscroggs.co.uk
Click here to win prizes by solving the mscroggs.co.uk puzzle Advent calendar.
Click here to win prizes by solving the mscroggs.co.uk puzzle Advent calendar.

subscribe

Puzzles

Tetrahedral die

When a tetrahedral die is rolled, it will land with a point at the top: there is no upwards face on which the value of the roll can be printed. This is usually solved by printing three numbers on each face and the number which is at the bottom of the face is the value of the roll.
Is it possible to make a tetrahedral die with one number on each face such that the value of the roll can be calculated by adding up the three visible numbers? (the values of the four rolls must be 1, 2, 3 and 4)

Show answer & extension

Tags: dice
If you enjoyed this puzzle, check out Sunday Afternoon Maths XXXI,
puzzles about dice, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles

Tags

differentiation algebra sequences hexagons clocks unit fractions calculus complex numbers parabolas arrows logic speed cryptic clues angles probability trigonometry routes cryptic crossnumbers 3d shapes square numbers crosswords books geometry people maths advent averages dodecagons multiplication crossnumbers circles sums colouring balancing money division ave rugby functions grids square roots digits dice planes prime numbers christmas indices scales spheres perimeter wordplay bases symmetry chess multiples sport dates 2d shapes shape means squares chocolate number coordinates shapes odd numbers percentages numbers folding tube maps fractions cards chalkdust crossnumber taxicab geometry time area coins rectangles graphs doubling partitions probabilty quadratics surds menace star numbers proportion volume ellipses floors irreducible numbers sum to infinity polygons factors integers triangles cube numbers perfect numbers addition pascal's triangle regular shapes mean factorials games lines palindromes triangle numbers remainders integration

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2019