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

ACT Math: Pre-Algebra Drill 4, Problem 1. What could the number described in the video be?

SAT Math 1.3 Numbers and Operations. x and y must be which of the following?

SAT Math 3.6 Numbers and Operations

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...

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.

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 covers Least Common Multiple and Greatest Common Factor. What are they? How do you find them? How does factorization play in?

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

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.

Just because some numbers are only a single digit, doesn't mean they don't still deserve a little love.

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.

SAT Math 1.4 Numbers and Operations. Solve the equation.

SAT Math 2.2 Algebra and Functions. What value of y is correct?

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...

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?