Help algebra.com: Words for Operations

Sal illustrates more involved equations in this last video in a series. It follows "Simple Equations" and "Equations 2". He continues using color-coded markings to help increase students' understanding of a more complicated equation:...

In this video, Sal solves a word problem sent in by a listener with two cyclists riding towards each other over a given time. It is an interesting problem regarding ratios and the relationship between distance, rate, and time. He shows...

The sum of three consecutive odd integers is 231. What is the largest integer? See how to unpack this word problem, set up an equation, and solve for the variable.

Sal starts to solve a trigonometric word problem of a wayward ship captain who veers off course and once aware of his predicament, needs to know how far he is from his destination. Instead of using the Law of Cosines in his solution, Sal...

For most people, solving word problems takes a lot of work. But Sal makes it look simple! Follow along as he unpacks this complicated word problem. He even demonstrates how to answer. Excellent!

Sal first solves some equations using the factoring method he has already taught. Next, he introduces the quadratic formula and demonstrates how to plug the numbers from the quadratic equation into the quadratic formula. He then solves...

The rules still hold. By reviewing the meaning of exponents in arithmetic, the video takes a look at exponents in algebra. The resource develops the meaning of any number raised to the zero power. Taking the idea of exponents further,...

A simple concept made even simpler. A short YouTube video explains how to simplify algebraic expressions. It covers simplifying linear expressions by applying the distributive property and combining like terms. It also shows how to...

This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [9:57]

Each step of the Order of Operations is described, then demonstrated in an example. A note on calculator use with order of operations is also included.