mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Advent calendar 2017
7 December
All 2017 advent puzzles
~
More information
The odd numbers are written in a pyramid.
1
3
5
7
9
11
etc.
What is the sum of the numbers in the seventh row?
Show answer
Hide answer
343
Tags:
numbers
Archive
Show me a random puzzle
Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
consecutive numbers
geometric mean
factors
shape
chocolate
christmas
elections
dice
squares
functions
albgebra
unit fractions
binary
planes
symmetry
trigonometry
digital clocks
pascal's triangle
multiplication
prime numbers
perimeter
division
triangle numbers
neighbours
determinants
clocks
square roots
combinatorics
range
palindromes
square numbers
sets
indices
probability
advent
area
medians
rectangles
coins
bases
graphs
lines
odd numbers
dodecagons
volume
polygons
crosswords
routes
coordinates
axes
ave
doubling
balancing
addition
rugby
sequences
money
numbers
shapes
geometry
differentiation
regular shapes
dominos
irreducible numbers
tournaments
consecutive integers
sums
grids
sum to infinity
wordplay
powers
digital products
people maths
fractions
integers
crossnumber
tangents
chess
even numbers
crossnumbers
multiples
algebra
scales
sport
mean
taxicab geometry
hexagons
folding tube maps
quadrilaterals
complex numbers
quadratics
cryptic crossnumbers
games
cube numbers
star numbers
cards
polynomials
circles
colouring
2d shapes
products
calculus
means
cubics
partitions
numbers grids
parabolas
angles
arrows
spheres
pentagons
speed
logic
proportion
triangles
chalkdust crossnumber
decahedra
expansions
time
probabilty
matrices
books
perfect numbers
3d shapes
remainders
integration
floors
averages
the only crossnumber
cryptic clues
percentages
factorials
digits
ellipses
gerrymandering
dates
surds
square grids
number
median
tiling
menace
geometric means
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
geometric means
products
powers
routes
speed
expansions
star numbers
angles
area
lines
the only crossnumber
2d shapes
multiplication
neighbours
multiples
unit fractions
quadrilaterals
colouring
integration
means
division
ave
square roots
quadratics
clocks
addition
squares
shape
percentages
books
sum to infinity
volume
coins
symmetry
polynomials
matrices
games
time
consecutive integers
cube numbers
sums
graphs
hexagons
rugby
palindromes
digital clocks
tiling
numbers grids
geometry
algebra
triangle numbers
floors
functions
sequences
spheres
determinants
pentagons
shapes
even numbers
crosswords
number
surds
cryptic crossnumbers
factors
doubling
prime numbers
crossnumber
perimeter
advent
probability
square numbers
albgebra
integers
fractions
consecutive numbers
cubics
remainders
grids
balancing
complex numbers
indices
probabilty
dates
combinatorics
crossnumbers
sport
planes
people maths
triangles
gerrymandering
circles
cards
averages
tournaments
christmas
proportion
medians
dominos
range
chess
geometric mean
chocolate
parabolas
money
logic
square grids
3d shapes
dodecagons
taxicab geometry
ellipses
digits
calculus
bases
binary
arrows
tangents
mean
rectangles
decahedra
chalkdust crossnumber
partitions
dice
sets
irreducible numbers
polygons
cryptic clues
wordplay
regular shapes
coordinates
scales
axes
menace
differentiation
factorials
median
odd numbers
trigonometry
numbers
perfect numbers
elections
pascal's triangle
folding tube maps
digital products
© Matthew Scroggs 2012–2025