mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

20 December

Today's number is the sum of all the numbers less than 40 that are not factors of 40.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024