mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2023

17 December

If you expand \((a+b+c)^2\), you get \(a^2+b^2+c^2+2ab+2ac+2bc\). This has 6 terms.
How many terms does the expansion of \((a+b+c+d+e+f)^5\) have?

Show answer

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

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025