3× 37 = 111 6 × 37 = 222 9 × 37 = 33312 × 37 = 44415 × 37 = 55518 × 37 = 66621 × 37 = 77724 × 37 = 88827 × 37 = 999111.111.111 × 111.111.111 = 12.345.678.987.654.321 1 × 9 + 2 = 11 12 × 9 + 3 = 111 123 × 9 + 4 = 1111 1234 × 9 + 5 = 11111 12345 ×9 + 6 = 111111 123456 × 9 + 7 = 1111111 1234567× 9 + 8 = 11111111 12345678 × 9 + 9 = 111111111