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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?

Hemingway was great with words, but not so great with numbers. Thankfully, he had his cats to help teach him math. Stick with us instead; we don't...

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...

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.

ACT Math: Pre-Algebra Drill 4, Problem 3. Simplify the expression.

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.

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

Number Sense: Drill Set 4, Problem 4. Solve the expression.

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?

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.

SAT Math 1.4 Numbers and Operations. Solve the equation.

Get back to your roots with this video.

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

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?

CAHSEE Math Number Sense: Drill Set 1, Problem 3. Which of the following numbers is the largest?