Wonders of Numbers Mathematics teachers to increase knowledge

Have we thought about the composition of the following numbers? ..

It's not too important ...

but ... not-presume dinyana really magical.

It is no accident, but that's really mathematics. Lots of things will we get if we want to learn math


One

0 x 9 0 = 0
1 x 9 1 = 10
12 x 9 2 = 110
123 x 9 3 = 1110
1234 x 9 4 = 11 110
12345 x 9 5 = 111 110
123456 x 9 6 = 1.11111 million
1234567 x 9 7 = 11.11111 million
12345678 x 9 8 = 111 111 110
123456789 x 9 9 = 1111111110

This is nothing ...
Consider this also

Two

1 x 1 = 1
11 x 11 = 121
111 x 111 = 12 321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
111 111 x 111 111 = 12,345,654,321
1111111 x 1111111 = 1234567654321
11111111 x 11111111 = 123456787654321
111111111 x 111111111 = 12345678987654321


Three

1 x 8 1 = 9
12 x 8 2 = 98
123 x 8 3 = 987
1234 x 8 4 = 9876
12345 x 8 5 = 98 765
123456 x 8 6 = 987 654
1234567 x 8 7 = 9876543
12345678 x 8 8 = 98,765,432
123456789 x 8 9 = 987 654 321


Four

1 x 18 1 = 19
12 x 18 2 = 218
123 x 18 3 = 2217
1234 x 18 4 = 22 216
12345 x 18 5 = 222 215
123456 x 18 6 = 2,222,214
1234567 x 18 7 = 22,222,213
12345678 x 18 8 = 222 222 212
123456789 x 18 9 = 2,222,222,211


Five

123456789 + 987654321 = 1111111110
1 x 142 857 = 142 857 (same numbers)
2 x 142 857 = 285 714 (each different sequence numbers)
3 x 142 857 = 428 571 (each different sequence numbers)
4 x 142 857 = 571 428 (each different sequence numbers)
5 x 142 857 = 714 285 (each different sequence numbers)
6 x 142 857 = 857 142 (each different sequence numbers)
7 x 142 857 = 999 999 (waw ... ... a result of the Fantastic)


Six

arbitrary numbers can be multiplied by nine the number of results = 9
we prove it ... ..
1 x 9 = 9
2 x 9 = 18, number 1 8 = 9
3 x 9 = 27, number 2 7 = 9
4 x 9 = 36, number 3 6 = 9
ff. till infinity ... ..


Seven

22 x 9 = 198,
how quickly the two x 9 = 18, then insert number 9 in the middle, so 198 .... ok see for yourself how quickly the following ...
33 x 9 = 297, a quick 3 x 9 = 27, tucked amid 9
44 x 9 = 396
55 x 9 = 495
66 x 9 = 594
77 x 9 = 693
88 x 9 = 792
99 x 9 = 891 then how do the three numbers twin ....?
aja tuch tuck same residence in 1999 in the middle ....
do not believe it .... we prove ...
222 x 9 = 1998, a quick way 2 x 9 = 18, tucked amid 99
333 x 9 = 2997
444 x 9 = 3996
555 x 9 = 4995


There are other find any more ... ..???

Math's Great? ...