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We love doing absolute value problems because it means spending time with our good buddy, the number line. But don’t think we’ve forgotten abou...

The easy way to remember the look of an absolute value graph is that they are always a V-shape... and “V” stands for value. Or for verisimilitu...

ACT Math Pre-Algebra Drill 3, Problem 3. Find the absolute value.

Sometimes, we just want fewer y's...or more x's. That's why it's great to know how to add and subtract variables. In real life, though, we try to a...

What's easy, simple, and comfortable? Adding and subtracting double digit numbers. What's not-so-easy, the opposite of simple, and definitely not c...

What better way to teach simple addition and subtraction than with dress-up? Math skills will go great with that pink frilly number hanging in your...

ACT Math Elementary Algebra Drill 4, Problem 2. Solve for x.

ACT Math: Pre-Algebra Drill 2, Problem 1. Solve for x in this equation.

ACT Math Pre-Algebra: Drill 2, Problem 2. Solve for y.

Number Sense: Drill Set 5, Problem 1. Solve the equation.

We just had a brilliant idea for a new Transformer: Optimus Prime Factorization.

OMG you should totes watch this vid. LOL. It’s all about LCM and GCF… FTW. Least Common Multiple and Greatest Common Factor, here we come....

This video helps you tackle two-step equations with multiplication and division by using the opposite operation on each side of the equation. Defin...

Leftovers are good. Remainders are not.

What do you do when you have to multiply large numbers but you can’t use a calculator? Long multiplication, of course. This video covers how to d...

Please Excuse My Dear Aunt Sally. What did she do? Slander the process of order of operations?

CAHSEE Math Algebra and Functions: Drill Set 1, Problem 4. Which operation should be performed first?

Algebra and Functions: Drill Set 3, Problem 2. Simplify the expression in this video.

Numbers have friends in high places: they're called powers. And yes, they are powerful. They can make a single digit number turn into a 10 digit nu...

Exponents desperately want to be like regular ol' numbers—so it figures they also want to be multiplied and divided.

Those itty-bitty exponents are difficult to read as it is. Now they're going to be even smaller—and include fractions? Someone had better get us...

Please be advised that Shmoop does not endorse owning a pet Stegosaurus. The character in this video is a professional—do not attempt at home.

SAT Math 3.2 Numbers and Operations

SAT Math 1.4 Algebra and Functions. Solve for x.

Ever wish you didn't have to write out all those zeros when you counted your mounds of money? Well, there's a solution for that: scientific notatio...

CAHSEE Number Sense: Drill Set 1, Problem 1. How would he write the number in scientific notation?

CAHSEE Math Number Sense: Drill Set 1, Problem 2. The decimal 0.000035 can be written in scientific notation as...what?