Howcast - When multiplying decimals, the key is to keep track of the number of decimal places. Learn how with this guide.

Howcast -You can find the volume of various 3-D objects using a few simple mathematical formulas.

Howcast -Whether you are calculating the square footage of a piece of land, your house, or a room, the steps are similar.

Once you know the trick to adding and subtracting fractions with different denominators, you'll have no problem with these problems.

Do you need two and a half dozen cookies, but a recipe only makes one dozen? Don't let the daunting task of multiplying mixed numbers get in the way.

The rules of multiplication extend beyond multiplying 2 whole numbers. Here are some of the others.

Subtract, divide, and multiply your way to successfully determining how much that increase or decrease really amounts to.

No matter the size, you can use the same simple formula to determine the volume of a cylinder.

Pupil outcome: I can state the distributive law and use it to calculate efficiently. Key learning points: - The distributive law can be used when two (or more) values have a common factor. - By using the distributive law, calculations...

In this video, we work through a few examples of polynomial long division, and we relate it to long division of constants (regular numbers).

In this video, we use the product rule and the power rule to simplify expressions.

In this video, we factor special product binomials. Specifically, we factor difference of square, sum of cubes, and difference of cubes.

Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...

In this video, we learn how to add, subtract, multiply, and divide complex numbers. In the dividing portion of this video (7:05), we look at how to use the complex conjugate to rewrite quotients.

In this video we learn how to solve systems of equations with elimination / combination.

This video relates how to divide polynomials with the standard algorithm for how we divide two digit numbers. We divide by monomials (one term) and binomials (two terms).This video includes problems with a remainder.

In this video, we work some problems that have more than one type of variation.

In this video, we multiply matrices by a scalar.

In this video, we examine how you know when you can multiply two matrices, and what the size of the product matrix will be.

Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...

In this video, we learn how to multiply two matrices that are different sizes.

In this video, we define inverse matrices and investigate some of their properties.

In this video, we learn a method for calculating the inverse of a matrix.

In this video, we solve rational equations by finding a common denominator.