Mental Calculations

Perform this calculation in your head, mentally adding the numbers as quickly as you can. Start with 1000 and add 40. Now add 1000. Add 30 to that, then add another 1000. Now add 20 to that result. Add another 1000 and finally, add 10 to that. What is the total?

4,100. If you got 5,000 you’re not alone. 96% of test subjects get the wrong answer.

Posted in Brain Teasers


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