Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

Two wine merchants enter Paris, one of them with 64 casks of wine, the other with 20.

Determine a number having remainders 2, 3, 2 when divided by 3, 5, 7 respectively.

Determine the dimensions for a right-angled triangle, having been given the hypotenuse, and the side of the inscribed square.

Three equal circumferences with radii 6" are tangent to each other. Compute the area enclosed between them.

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.

A boy gives 11 coins of equal denomination to a man, and the man finds that their total value in yen is 4 less than his age.

There were two men, of whom the first had 3 small loaves of bread and the other, 2.

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions