mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

3 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.
++= 11
- + ×
+-= 11
- - -
++= 11
=
-11
=
11
=
11

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

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

Archive

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