| 1
x 8 + 1 = 9 |
|
12 x 8 + 2 = 98 |
|
123 x 8 + 3 = 987 |
|
1234 x 8 + 4 = 9876 |
|
12345 x 8 + 5 = 98765 |
|
123456 x 8 + 6 = 987654 |
|
1234567 x 8 + 7 = 9876543 |
|
12345678 x 8 + 8 = 98765432 |
|
123456789 x 8 + 9 = 987654321 |
| |
|
1 x 9 + 2 = 11 |
|
12 x 9 + 3 = 111 |
|
123 x 9 + 4 = 1111 |
|
1234 x 9 + 5 = 11111 |
|
12345 x 9 + 6 = 111111 |
|
123456 x 9 + 7 = 1111111 |
|
1234567 x 9 + 8 = 11111111 |
|
12345678 x 9 + 9 = 111111111 |
|
123456789 x 9 +10= 1111111111
|
| |
| 9
x 9 + 7 = 88 |
|
98 x 9 + 6 = 888 |
|
987 x 9 + 5 = 8888 |
|
9876 x 9 + 4 = 88888 |
|
98765 x 9 + 3 = 888888 |
|
987654 x 9 + 2 = 8888888 |
|
9876543 x 9 + 1 = 88888888 |
|
98765432 x 9 + 0 = 888888888 |
| |
| Brilliant,
isn't it? |
| |
| And
finally, take a look at this symmetry:
|
| |
| 1
x 1 = 1 |
|
11 x 11 = 121 |
|
111 x 111 = 12321 |
|
1111 x 1111 = 1234321 |
|
11111 x 11111 = 123454321 |
|
111111 x 111111 = 12345654321
|
|
1111111 x 1111111 = 1234567654321 |
|
11111111 x 11111111 = 123456787654321 |
|
111111111 x 111111111=12345678987654321 |
