- Think of a 3 digit number where all the digits are different.
- Reverse the digits
- Subtract the smaller number from the larger number
- Reverse the digits again
- Add the numbers in steps 3 and 4

Whatever 3 digit number you choose the number will always be 1089!

**Here is an example**

- 543
- 345
- 543 - 345 = 198
- 891
- 891 +198 =1089

Labels: Puzzles

#### 4 Comments:

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1. 291

2. 192

3. 291-192=99

4. 99

5. 99+99=198

Busted, sorry.

2. 123

3. 123 - 321 = -198

4. -891

5. -891 + (-198) = -1089

which is not 1089

busted!

I think you didn't read the third step correctly.It is "Subtract the smaller number from the larger number". So in your example it is 321-123 = 198 & not 123 - 321 = -198. So in the end you will get 1089 not -1089.