mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2016

13 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 smaller number in a red box to the power of the larger number in a red box.
+-= 8
- - -
+÷= 3
+ ÷ ×
+×= 120
=
8
=
1
=
8
Tags: numbers, grids

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021