12 Math Tricks to Help You Solve Problems Without a Calculator

Working it out in your head

Photo by Crissy Jarvis on Unsplash

Addition + Subtraction

1. Addition

The first trick is to simplify your problem by breaking it into smaller pieces. For example, we can rewrite

567 + 432 
= 567 + (400 + 30 + 2)
= 967 + 30 + 2 
= 997 + 2 
= 999