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

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

Archive

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