Riddle: Add the following problem in your head without using a calculater or paper.

Take a 1000 and add 40. Take the answer and add another 1000 to it. Add 30 to the sum. Then add another 1000 and 20. Add another 1000. Last add 10. What is the answer?
Answer: 4100. Now you can use a calculater or paper.
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A simple addition problem Riddle Meme.
A simple addition problem Riddle Meme.
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