mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

21 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 smallest number you can make using the digits in the red boxes.
+÷= 2
× + -
×-= 31
+ + -
-×= 42
=
37
=
13
=
-2

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

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

Archive

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