I have created yet one more free worksheet generator. This one makes problems that give the student an expression in words, such as the quotient of 7t and 5, the difference of x and 8, divided by 2, or the quantity 8 plus 2t, cubed, and ask the student to write a mathematical expression to match that.
These worksheets suit best grades 6, 7, and 8, including pre-algebra and algebra 1 courses.
They specifically address the Common Core Standard 6.EE.2:
Write, read, and evaluate expressions in which letters stand for numbers. However, this skill is also practiced in grades 7 and 8, or in pre-algebra and algebra 1 courses.
When using the actual generator, you can control the number of problems, workspace, border around the problems, and additional instructions.
Here are some quick links for ready worksheets. Refresh the worksheet page to get another of the same kind, until you are happy with the problems and layout.