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Algebra

Algebra is great fun - you get to solve puzzles! With computer games you play by running jumping and finding secret things. With Algebra you play with letters numbers and symbols and you...

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Introduction to Algebra

Algebra is great fun - we get to solve puzzles! What is the missing number? OK the answer is 6 right? Because 6 − 2 = 4. Easy stuff. Well in Algebra we don't use blank boxes we use a...

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Algebra 2

Also known as "College Algebra" OK. So what are you going to learn here? You will learn about Numbers Polynomials Inequalities Sequences and Sums many types of Functions and how to solve...

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College Algebra

Also known as "High School Algebra" OK. So what are you going to learn here? You will learn about Numbers Polynomials Inequalities Sequences and Sums many types of Functions and how to...

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Introduction to Algebra - Multiplication

Please read Introduction to Algebra first. What is the missing number? The answer is 2 right? Because 2 × 4 = 8. Well in Algebra we don't use blank boxes we use a letter. So we might write:

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Boolean Algebra

Boolean Algebra is about true and false and logic. The simplest thing we can do is to "not" or "invert": We can write this down in a "truth table" (we use T for true and F for false):

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Algebra Puzzles

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Algebraic Numbers

Put simply when we have a polynomial equation like (for example). whose coefficients (the numbers 2 4 and −7) are rational numbers (whole numbers or simple fractions) ...

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Algebra - Substitution

"Substitute" means to put in the place of another. In Algebra "Substitution" means putting numbers where the letters are: Put "2" where "x" is:

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Algebra - Basic Definitions

It may help you to read Introduction to Algebra first. An equation says that two things are equal. It will have an equals sign "=" like this:

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Pre-Algebra

Pre-algebra introduces essential math skills that are useful in everyday life. Here we explore numbers patterns calculations and problem-solving methods.

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Symbols in Algebra

Symbols save time and space when writing. Here are the most common algebraic symbols (also see Symbols in Geometry):

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Fundamental Theorem of Algebra

The "Fundamental Theorem of Algebra" is not the start of algebra or anything but it does say something interesting about polynomials: Let me explain:

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Fractions in Algebra

We can add subtract multiply and divide fractions in algebra in the same way we do in simple arithmetic. To add fractions there is a simple rule:

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Algebra Mistakes

Here's a collection of algebra mistakes that are pretty easy to make. Try to avoid them! And be careful of these ones too: We can't simplify that!

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Algebra

Algebra uses letters (like x or y) or other symbols in place of values and then plays with them using special rules. In this case the value of "x" can be found by subtracting 3 from both...

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Boolean Algebra

Boolean Algebra is about true and false and logic. It is used in mathematics digital circuits and computer science.

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Solving Word Questions

With LOTS of examples! In Algebra we often have word questions like: On the weekend Sam played 4 more games than Alex did and together they played 12 games.

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Algebra - Expanding

( ) are called "parentheses" or "brackets" Whatever is inside the ( ) needs to be treated as a "package". So when multiplying: multiply by everything inside the "package".

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Factoring in Algebra

Numbers have factors: And expressions (like x2 + 4x + 3) also have factors: Factoring (called "Factorising" in the UK) is the process of finding the factors:

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Solving Inequality Word Questions

In Algebra we have "inequality" questions like: How do we solve them? The trick is to break the solution into two parts: Turn the English into Algebra.

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