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

puzzles about numbers, or a random puzzle.