This video demonstrates the 1089 number trick: pick any three-digit number with different first and last digits, reverse it, subtract the smaller from the larger, reverse the result, and add them together—the answer will always be 1089.
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The 1089 Math MysteryAdded:
Pick any three-digit number. I already know how it ends, but the first and last digits must be different. Let us say I pick 732.
Now, reverse it and subtract the smaller number. Now, reverse the answer and add them. And the answer is always 1089. Try it with your own number. Comment your starting number below. Subscribe for tomorrow's math trick.
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