I found a stone but did not weigh it; after I added to it 1/7 of its weight and then 1/11 of this new weight, I weighed the total at 1 mina. What was the weight of the stone?

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

A merchant bought 50,000 pounds of pepper in Portugal for 10,000 scudi and paid a tax of 500 scudi.

Find a number having remainder 29 when divided by 30 and remainder 3 when divided by 4.

A man died leaving 3 sons, to whom he bequeathed his estate in the following manner: to the eldest he gave 184 dollars; to the second 155 dollars and to the third 96 dollars;

I owe a man the following notes: one of $800 due May 16; one of $660 due on July 1; one of $940 due Sept. 29. He wishes to exchange them for two notes of $1200 each and wants one to fall due June 1. When should the other be due?

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

An oblong garden is a half yard longer than it is wide and consists entirely of a gravel walk...

A certain man had in his trade four weights with which he could weigh integral pounds from one up to 40. How many pounds was each weight?

Given a semicircle, Prove that if O is the circle's center, DO=OE.

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