mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2020

9 December

Put the digits 1 to 9 (using each digit exactly once) in the boxes so that the sums are correct. The sums should be read left to right and top to bottom ignoring the usual order of operations. For example, 4+3×2 is 14, not 10. Today's number is the product of the numbers in the red boxes.
+×= 54
× + ÷
-÷= 1
÷ - ×
+-= 6
=
18
=
6
=
18

Show answer

Tags: numbers, grids

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026