Algebra is often seen as one of the hardest courses in mathematics. For many students, the introduction of variables, equations, and functions tends to be confusing and overwhelming. As students go from pre-algebra to algebra in middle school and high school, the topics become more complicated.

Each crossword contains a mathematical equation. Players need to fill in the blanks to make these mathematical equations true. When players complete the puzzle, they can click the Submit button to see the result.

Perhaps the most famous is the November 5, 1996, puzzle by Jeremiah Farrell, published on the day of the U.S. presidential election, which has been featured in the movie Wordplay and the book The Crossword Obsession by Coral Amende, as well as discussed by Peter Jennings on ABC News, featured on CNN, and elsewhere.

Algebra is a branch of mathematics that uses mathematical statements to describe relationships between things that vary. These variables include things like the relationship between the supply of an object and its price.

Mondays have the most straightforward clues and Saturday clues are the hardest, or involve the most wordplay. Contrary to popular belief, the Sunday puzzles are midweek difficulty, not the hardest. They're just bigger. A typical Monday clue will be very straightforward and drive you almost directly to the answer.

But remember that algebra is just a way of solving a numerical problem. It demonstrates how the pieces of a puzzle fit together to arrive at a solution.

A maths puzzle is based on mathematical or numerical facts, rules, and objects, or whose solution requires strong mathematical reasoning, thought or consideration. Mathematics is the study of abstract topics such as numbers, shapes, quantity, space, and change.