mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2017

12 December

Put the digits 1 to 9 (using each digit exactly once) in the boxes so that the sums are correct. Today's number is the product of the numbers in the red boxes.
++= 17
+ + +
++= 7
+ + +
++= 21
=
11
=
20
=
14
Tags: numbers, grids

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

floors matrices taxicab geometry polygons arrows neighbours multiples digital products chalkdust crossnumber digits odd numbers sets ave functions dates quadratics coordinates grids triangle numbers crosswords tournaments decahedra folding tube maps rectangles percentages spheres sequences integers range prime numbers partitions palindromes dominos indices hexagons dodecagons addition sum to infinity scales games tangents routes surds consecutive numbers fractions binary perfect numbers lines people maths speed squares advent gerrymandering complex numbers square roots colouring trigonometry shapes mean volume time number factorials square grids shape symmetry balancing 3d shapes angles median money integration combinatorics 2d shapes cryptic crossnumbers chess means expansions wordplay cards differentiation determinants dice parabolas perimeter polynomials pascal's triangle consecutive integers quadrilaterals calculus geometric means remainders sums books clocks probabilty products medians multiplication star numbers sport ellipses digital clocks bases menace regular shapes graphs crossnumbers probability planes cube numbers numbers grids rugby pentagons algebra square numbers circles geometric mean irreducible numbers chocolate axes the only crossnumber cryptic clues coins averages factors numbers division doubling logic powers proportion tiling albgebra christmas cubics geometry elections even numbers area triangles unit fractions

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025