Viral math trick | Math Challenge

Added: 2026-05-28

This video demonstrates a viral math puzzle where the correct answer is 4100, not 5000. The trick involves carefully adding the numbers in sequence: 1000 + 40 = 1040, then +1000 = 2040, +30 = 2070, +1000 = 3070, +20 = 3090, +1000 = 4090, and finally +10 = 4100. The common mistake is to incorrectly add all thousands (4000) and all tens (100) separately, which yields 5000. This puzzle tests attention to detail and sequential calculation skills.