| You
will need a calculator to explore this cute
little arithmetical puzzler. |
- Think of ANY three
digit number. Then repeat it to form a
six digit number (e.g., 315315)
|
- Multipy this six
digit number by 9 and divide by 11 (I
predict there will be no remainder)
|
- Divide the answer by
7 (I predict there will be no remainder)
|
- Divide the answer by
3 (I predict there will be no remainder)
|
- Multiply the answer
by 2 and divide by 13 (I predict there
will be no remainder)
|
|
|
| I
predict the answer = the number you first thought
of ! Challenge
Can you work out why this
trick never fails?
|
