Why This Viral Math Problem Is Breaking The Internet (And How To Solve It)
Every few months, a simple math equation goes viral, sparking thousands of heated debates in comment sections. The latest culprit? A seemingly innocent string of numbers: 2 x 2 – 2 ÷ 2 + 2 = ?
While it looks like something from a third-grade workbook, “nobody seems to agree on the right answer.” Here is why this equation is causing such a stir and the definitive proof of the correct solution.
The Order of Operations: PEMDAS vs. BODMAS
The reason people get different answers isn’t that math is subjective; it’s because many of us have forgotten the Order of Operations. Whether you learned it as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) or BODMAS, the rules are the same: you cannot simply solve from left to right.
Multiplication and Division take priority and should be solved from left to right.
Addition and Subtraction are handled last, also from left to right.
Breaking Down the Equation
Let’s look at $2 \times 2 – 2 \div 2 + 2$ step-by-step:Step
1: Multiplication. First, we handle $2 \times 2$. That gives us 4.New equation: $4 – 2 \div 2 + 2$Step 2: Division. Next, we address the $2 \div 2$. That gives us 1.New equation: $4 – 1 + 2$Step 3: Subtraction. Working from left to right, we do $4 – 1$. That gives us 3.New equation: $3 + 2$Step 4: Addition. Finally, $3 + 2 = 5$.The correct answer is 5.
Why Do People Get Other Answers?The “Internet’s Answer” is often 3 or 1. Here is how those mistakes happen:The Left-to-Right Trap: If you ignore the rules and just go in order, you get: $2 \times 2 = 4$; $4 – 2 = 2$; $2 \div 2 = 1$; $1 + 2 = 3$. While it feels natural, it’s mathematically incorrect.The Addition First Mistake: Some people try to do the addition at the very end ($1 + 2 = 3$) before doing the subtraction ($4 – 3 = 1$). However, subtraction and addition hold equal weight, so you must move from left to right.