Lawrence Hall of Science
The Math Page: Skill in Algebra: Word Problems That Lead to Simultaneous Equations
Here is a site that clearly and thoroughly explains how to solve word problems that lead to systems of equations, such as mixture, coin, investment, and upstream/downstream problems. There are example problems solved, problems for the...
Calculator Soup
Calculator Soup: Math Word Problems: Addition & Multiplication
Practice coin word problems. This calculator helps you practice word problems that involve addition and multiplication using coins.