mscroggs.co.uk
mscroggs.co.uk
Click here to win prizes by solving the mscroggs.co.uk puzzle Advent calendar.
Click here to win prizes by solving the mscroggs.co.uk puzzle Advent calendar.

subscribe

Puzzles

4 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 digits in the red boxes.
+÷= 2
+ ÷ -
÷-= 5
÷ - ×
-×= 4
=
3
=
5
=
6
Tags: grids, numbers

20 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.
+-= 8
- - -
+÷= 9
+ ÷ ×
+×= 108
=
6
=
1
=
18
The answer is the product of the digits in the red boxes.

Show answer

Tags: numbers, grids

18 December

Put the digits 1 to 9 (using each digit once) in the boxes so that the three digit numbers formed (reading left to right and top to bottom) have the desired properties written by their rows and columns.
multiple of 9
multiple of 3
multiple of 5
multiple of 6multiple of 4cube number
Today's number is the multiple of 6 formed in the left hand column.

Show answer

Tags: numbers, grids

13 December

Put the digits 1 to 9 (using each digit once) in the boxes so that the three digit numbers formed (reading left to right and top to bottom) have the desired properties written by their rows and columns.
The row marked sum is equal to the sum of the other two rows. The column marked sum is equal to the sum of the other two columns.
odd
all digits even
sum
evenoddsum
Today's number is the largest three digit number in this grid.

Show answer

Tags: numbers, grids

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

6 December

Put the digits 1 to 9 (using each digit once) in the boxes so that the three digit numbers formed (reading left to right and top to bottom) have the desired properties written by their rows and columns.
multiple of 5
multiple of 7
cube number
multiple of 9multiple of 3multiple of 4
Today's number is the multiple of 5 formed in the first row.

Show answer

Tags: numbers, grids

4 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.
-+= -4
+ + +
-÷= -1
- ÷ ×
-×= -30
=
0
=
2
=
54
The answer is the product of the digits in the red boxes.

Show answer

Tags: numbers, grids

The self referential crossword

Fill in the following crossnumber grid so that each clue describes the solution.
For example, if some clues read "TEN DS", "ONE X" and "THREE ES" then there will be ten Ds, one X and three Es in the completed grid. The entries in the crossword include the spaces.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024