A magic hypercube is a special type of toy made up of blocks that are arranged in a specific way so that all of the numbers on each side of the cube add up to the same thing.
To understand this, let's start with a regular cube, like a die. You know that a die has six sides and each side has a different number ranging from 1 to 6. Now, imagine a bigger cube made up of smaller cubes, like a giant Rubik's cube. This is called a hypercube.
In a magic hypercube, each side of the hypercube is made up of smaller cubes with numbers on them. But, unlike a regular Rubik's cube, the numbers on each side of the hypercube are arranged in a way that when you add up all the numbers on one side, you get the same total as all the other sides. This is why it's called a "magic" hypercube.
Think of it like this: you have a bunch of toy building blocks with numbers on them, and you want to make a cube out of them where all the numbers on each side add up to the same number. It's like trying to solve a puzzle, but instead of matching colors like in a Rubik's cube, you're matching numbers.
So the next time you see a magic hypercube, remember that it's a toy made up of cubes within a cube, with numbers arranged in a special way to make all the sides add up to the same thing.