No, going from $600 to $10 is not a 600% decrease

Here's my credit card number. First come, first serve.

One of my favorite mental math tricks: Squaring numbers ending in 5

It's Mental Math Monday! Wisconsin became a state in 1848. How would you mentally calculate how old it is as a state in 2026?

Today's trick toss

Probability puzzle

New trick toss unlocked

Why does "keep change flip" work?

Sabre compilation. (Can you tell I like rifle more? lol)

Here's how we can visually show why "keep change flip" works

What is this math homework asking for?

There are three boxes on a table. One contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes are labeled incorrectly. You can pick one fruit from one box, but after that, you must correctly label all boxes.

How do we do this?

It's Mental Math Monday! James from Alabama wants to know how you would mentally calculate 4 1/2 - 1 5/8.

The decimal representation for 1/7s is really cool

Today's trick toss

Puzzle: How to find the money in 3 weeks using geometry

What's the probability of pulling all 6 different Smiskis with 7 boxes?

How many ways can you spell kayak in this grid?

Did you know of this quick way of finding a fraction between two fractions?

Can you figure out what's happening here?

It's Mental Math Monday! If 7.5 is 30% of my number, how would you figure out what my number is?

What's the probability of getting all 6 Smiskis if I buy 6 boxes?

New trick toss unlocked

A quick way to multiply by 5

Today's trick toss

Let's learn about short division

Let's learn about the golden ratio

Four arguments for why 0.999...=1

Blindfolded catch

Today's trick toss