Only Geniuses Can Solve This Math Puzzle in 10 Seconds: Can You?

 

Are you ready to put your mental math skills to the test?

A deceptively simple equation has been making the rounds online, challenging people to find the correct answer in just 10 seconds. At first glance, it might look like a breeze, but there’s a catch: solving it correctly requires strict adherence to the rules of mathematics.

Before you guess, take a look at the equation:

7 × 7 – 7 ÷ 7 + 7 = ?

Think you’ve got it? Before you lock in your answer, let’s review the golden rule that holds this puzzle together: the order of operations.

The Rule: PEMDAS

In mathematics, we follow a specific sequence to solve equations, commonly remembered by the acronym PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

The key to this puzzle is remembering that multiplication and division must be handled before addition and subtraction. Furthermore, when you have multiple operations of the same tier (like multiplication and division, or addition and subtraction), you must solve them strictly from left to right.

The Step-by-Step Solution

 

The Step-by-Step Solution

Let’s break down the equation using the proper order of operations:

Step 1: Multiplication and Division (Left to Right)

First, we tackle the multiplication on the far left:

7 × 7 = 49

Next, we handle the division:

7 ÷ 7 = 1

Now, substitute those results back into the equation. It now looks like this:

49 – 1 + 7

Step 2: Addition and Subtraction (Left to Right)

Many people make the mistake of adding the 1 and 7 together first because “addition comes before subtraction” in the acronym. However, they are on the same tier, so we must go left to right.

First, the subtraction:

49 – 1 = 48

Finally, the addition:

48 + 7 = 55

The Final Answer

The correct answer is 55.

Did you get it right within the 10-second time limit? Whether you solved it instantly or needed a quick refresher on PEMDAS, these viral puzzles are a fun reminder that in math, paying attention to the details always pays off. Share this with a friend and see if they can beat the clock!