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

What is the sum?

What is \(\displaystyle\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+...+\frac{1}{\sqrt{15}+\sqrt{16}}\)?

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020