ELI5: Explain Like I'm 5

Mathematical formula

Okay kiddo, you know when we play with blocks and we try to put them together to make a tower? Sometimes we need to count how many blocks we have to see if we have enough to make a big tower.

Well, a mathematical formula is kind of like that! It's a way for grown-ups to figure out things by using numbers and symbols.

Just like we count blocks, grown-ups use formulas to count or figure out things in math. But instead of just counting blocks, they can use a special formula to figure out how many blocks they need to make a tower of a certain height, or how long it will take to get somewhere if they know how fast they're going.

A formula might look like a bunch of letters and numbers all mixed together, but it's really just like a special recipe that tells us what numbers to use and how to put them together to get the answer we need.

So, just like we have to follow a recipe to make our favorite cookies, grown-ups have to follow a formula to solve problems in math. And just like cookies taste yummy when we follow the recipe, formulas can help us get the right answers in math!