In a world where calculators and smartphones are at our fingertips, let’s take a moment to flex our mental math muscles. We’ve got a fun little math challenge for you today that’s all about using your noggin without any digital crutches.
The equation in front of us is 9 + 1 + 9 + 1 × 0 + 1. Remember, the key rule here is no calculator allowed!
First, we need to follow the order of operations, which is often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division first, then Addition and Subtraction). In our equation, we spot multiplication: 1 × 0. As we know, any number multiplied by 0 is 0. So, that part of the equation simplifies to 0.
Now, our equation becomes 9 + 1 + 9 + 0 + 1. Let’s start adding these numbers step – by – step. 9 + 1 equals 10. Then, 10 + 9 gives us 19. Adding 0 doesn’t change the value, so we’re still at 19. Finally, 19 + 1 equals 20.
So, the answer to our little math brain – teaser is 20! It’s amazing how these basic math problems can jog our memory of fundamental arithmetic rules. Keep challenging yourself with more of these, and watch your mental math abilities improve. Who knows, you might even start impressing your friends with your lightning – fast calculations!
