This riddle is simple to test your adding skills. It must be done IN YOUR
HEAD ONLY and NOT using paper and pen.
Take 1000 and add 40 to it. Now add another 1000.
Now add 30. Another 1000.
Now add 20. Now add another 1000. Now add 10.
What is the total? (scroll down for answer)
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Did you get 5000?
The correct answer is actually 4100. Don’t believe it? Check with your
calculator!
The decimal sequence confuses our brain, that always jumps to the
highest decimals (100s instead of 10s).
Answer: 1000+40 = 1040. +1000 = 2040. +30 = 2070. +1000 = 3070. +20 =
3090. +1000 = 4090. +10 = 4100!
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Dr Bob Griffin
[email protected] www.grif.net
“Jesus Knows Me, This I Love!”