So the correct answer is: -99
And you, have you found it?
If so, congratulations! You have solid mathematical logic and a good memory of your school foundations. If not, no worries: this kind of challenge is there to remind us of rules that we have sometimes forgotten a little in everyday life.
And let’s be honest, it’s not every day that you have to solve this type of equation between two messages or while preparing dinner . But it’s an excellent exercise to wake up your neurons, stimulate your memory… and impress your loved ones at the next aperitif quiz !
These little challenges that are good for our brain
Beyond the fun aspect, math puzzles are a real workout for our minds. They force us to slow down, focus, and put our thoughts in order. A bit like a mini yoga for the mind , in short!
So why not make it a ritual? A little challenge a day to keep your mind sharp, while having fun. Share it with your children, your partner, or your colleagues for a more original coffee break.
What if the best brain gym… was simply playing with numbers?
