Math Fun: Unleashing Your Mental Calculation Skills
Hey there, math enthusiasts! Ever wondered how sharp your mental arithmetic really is? Let’s dive into a simple – yet tricky – math problem that’s been making rounds.
The problem is: 40 + 40 – 70 x 0 + 20 + 10. And the golden rule? No calculator allowed!
First off, we need to remember the order of operations, known as PEMDAS (Parentheses, Exponents, Multiplication and Division first, then Addition and Subtraction). In our problem, we spot multiplication: 70 x 0. Any number multiplied by 0 is 0, so that part of the equation becomes 0.
Now, our equation simplifies to 40 + 40 – 0 + 20 + 10. Adding 40 and 40 gives us 80. Subtracting 0 doesn’t change the value, so we’re still at 80. Then, adding 20 to 80 gives us 100, and finally, adding 10 to 100 results in 110.
So, the answer is 110!
It’s amazing how a basic math problem can test our knowledge of fundamental rules. Keep challenging your brain with more of these, and watch your mental math skills soar!
