KEUNIKAN PADA MATEMATIKA

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   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 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   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   9 x 1 = 09 (0 + 9 = 9) 9 x 2 = 18 (1 + 8 = 9) 9 x 3 = 27 (2 + 7 = 9) 9 x 4 = 36 (3 + 6 = 9) 9 x 5 = 45 (4 + 5 = 9) 9 x 6 = 54 (5 + 4 = 9) 9 x 7 = 63 (6 + 3 = 9) 9 x 8 = 72 (7 + 2 = 9) 9 x 9 = 81 ( 8 + 1 = 9) 9 x 10 = 90 (9 + 0 = 9)   POSTING DARI KASKUS