# Puzzles

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#### Sunday Afternoon Maths LXVII

Coloured weightsNot Roman numerals

#### Advent calendar 2018

#### Sunday Afternoon Maths LXVI

Cryptic crossnumber #2#### Sunday Afternoon Maths LXV

Cryptic crossnumber #1Breaking Chocolate

Square and cube endings

List of all puzzles

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

Ted thinks of a three-digit number. He removes one of its digits to make a two-digit number.

Ted notices that his three-digit number is exactly 37 times his two-digit number. What was Ted's three-digit number?

If you enjoyed this puzzle, check out Sunday Afternoon Maths LXIV,

puzzles about digits, or a random puzzle.

puzzles about digits, or a random puzzle.