mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2021

10 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 largest number you can make using the digits in the red boxes.
++= 20
+ + +
++= 10
+ + +
++= 15
=
7
=
23
=
15

Show answer

Tags: numbers, grids

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

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

Archive

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