I wish to find three numbers of such nature that the first and the second with 1/2 of the third makes 20...

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

A father left $20,000 to be divided among his four sons ages 6, 8, 10, and 12 years respectively so that each share placed at 4 1/2 compounded interest should amount to the same value when its possessor becomes the age 21.

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

Given a right triangle where you know the length of the base and the sum of the perpendicular side and the hypotenuse.

Three people buy wood together. One pays the merchant 5 coins, another 3 coins, and the last 2 coins.

If 40 oranges are worth 60 apples, and 75 apples are worth 7 dozen peaches, and 100 peaches are worth 1 box of grapes and three boxes of grapes are worth 40 pounds of pecans, how many peaches can be bought for 100 oranges?

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

One hundred men besieged in a castle, have sufficient food to allow each one bread to the weight of 14 lot a day for ten months.

Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.

A merchant woman buys and sells apples and pears for Denaros. How much did she invest in apples; how much in pears?