Order of operations puzzles always spark debates on social media, but sticking to standard rules (PEMDAS / BODMAS) makes solving this mental math challenge quick and simple.

Take a close look at the image above: Can you calculate the correct answer for 9 + 1 x 9 – 1?

Step-by-Step Breakdown & Solution

Let’s solve the equation step-by-step using standard order of operations:

Step 1: Multiplication First

According to PEMDAS/BODMAS rules, multiplication must be performed before addition or subtraction:

• 1 x 9 = 9

Now substitute this result back into the equation:

• 9 + 9 – 1

Step 2: Addition and Subtraction (Left to Right)

Addition and subtraction hold equal priority, so complete them in order from left to right:

• First, perform the addition: 9 + 9 = 18

• Next, perform the subtraction: 18 – 1 = 17

The correct answer is 17!

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Did You Get 17?

Did you remember to multiply before adding and subtracting, or did reading left to right from the very beginning lead to a different answer?

Drop your answer in the comments below before checking the breakdown!