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 

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

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

Archive

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