This Apparently Easy Math Problem Continues to Confuse People

An additional problem that seems easy enough at first glance is being widely shared, as people’s mental arithmetic skills keep getting tripped up by the same part of it. All you have to do is add up the following numbers. Try it for yourself:

You have 1000,

add 40,

add 1000,

add 30,

again add 1000,

add 20,

again 1000,

add 10

What is the result?

Got it? Share your answer below and then check the answer! Keep scrolling for answers or solutions.

A

B

C

ANSWER:
If you came up with 5,000 then congratulations: you’re not alone. But you’re also not correct.

The actual right answer is 4,100.

See, it’s remarkably straightforward to add up the first bunch of numbers in your head. 1,000 plus 40 is 1,040, plus 1,000 is 2,040, plus 30 is 3,070, plus 1,000 is 3,070, plus 20 is 3,090, plus 1,000 is 4,090. But it’s at this penultimate sum that things get tricky. Most people, when adding 10 to that figure, come up with 5,000. But that’s your brain skipping ahead (and overlooking a zero). The correct sum is, of course, 4,100.

Related articles

Elon Musk’s Underground Trouble: The Boring Company’s 800 Violations and the Growing Environmental Firestorm Beneath Las Vegas

What began as a bold dream of futuristic travel beneath Las Vegas — sleek tunnels, autonomous Teslas, and a promise to end city congestion — has turned…

Tesla’s Groundbreaking 2026 Car Set to Redefine the Future of Electric Mobility

In a world already buzzing with electric innovation, Tesla has once again positioned itself at the center of global attention. During a closed-door preview event at Tesla’s Design…

ELON MUSK JUST DECLARED THE END OF RENT — MEET THE TESLA TINY HOUSE 2026!

Rent? Gone. Mortgages? Over. That’s the promise Elon Musk made last night during a jaw-dropping presentation streamed live from Tesla’s Nevada Gigafactory. The billionaire entrepreneur, known for…

Tesla’s 2026 Showdown: Aluminum-Ion vs. Sodium-Ion — The Battery War That Could Redefine the Future of EVs

The countdown to Tesla’s 2026 launch has officially begun, and the automotive world is buzzing with one electrifying question: What battery will power the company’s most anticipated car yet —…

Elon Musk’s Shocking Hospitalization: Exhaustion Claims a Tech Titan.

Elon Musk’s Shocking Hospitalization: Exhaustion Claims a Tech Titan In a development that has sent shockwaves through the tech world and beyond, Elon Musk, the 54-year-old billionaire…

Tesla Isn’t Just Making Cars — Musk’s Bold Move Could Revolutionize Formula 1 and Change the Fastest Sport Forever!

When the news first broke, few believed it. Tesla — the company that redefined electric vehicles — might be entering the world of Formula 1. For decades, the…