mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

12 December

Put the digits 1 to 9 (using each digit exactly once) in the boxes so that the sums reading across and down 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.
+-= -2
- - -
+÷= 4
+ ÷ ×
+×= 50
=
4
=
-4
=
10
The answer is the product of the digits in the red boxes.

Show answer

Tags: numbers, grids

Archive

Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019