Test Your Brain with This Math Puzzle

The answer to the puzzle is 9.

This puzzle tricks you into thinking about addition, but it actually relies on counting the number of letters in the English spelling of each number.

• 1 + 1 = 6 ⇒ “ONE” (3 letters) + “ONE” (3 letters) = 6

• 2 + 5 = 7 ⇒ “TWO” (3 letters) + “FIVE” (4 letters) = 7

• 3 + 4 = 9 ⇒ “THREE” (5 letters) + “FOUR” (4 letters) = 9

• 6 + 8 = 8 ⇒ “SIX” (3 letters) + “EIGHT” (5 letters) = 8

Following this exact pattern for the final equation:

• 7 + 9 = ? ⇒ “SEVEN” (5 letters) + “NINE” (4 letters) = 9