Here’s a math challenge: 50 + 50 – 25 * 0 + 2 + 2. At first glance, it seems easy, but the multiplication might trip you up if you’re not familiar with the order of operations.
To solve it, follow PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). Multiplication comes before addition and subtraction.
Step 1: Start with multiplication.
25 * 0 = 0, so the equation becomes:
50 + 50 + 2 + 2.
Step 2: Now, just add the numbers.
50 + 50 = 100,
100 + 2 = 102,
102 + 2 = 104.
So, the correct answer is 104.
Why this matters: The common mistake is to skip the multiplication step and add or subtract first, which leads to an incorrect result. Following the proper order is key to solving math problems accurately—no calculator needed!
By understanding these basic rules, you can improve your mental math skills and tackle problems confidently, all while avoiding simple errors that can throw off the solution.