8023
5.5016
Six - assuming 0123 does not count ... 1234 2345 3456 4567 5678 6789
1234, 2345, 3456, 4567, 5678, 6789, 8910, 1010, 1011
6789/1
6789/1
12345 + 6789 = 19134
1234 * 1234 + 1234 = 1234 * 1235 = 1523990
2345 x 6789 = 15920205
333 + 6789 = 7,122
1239 x 6789 = 8,411,571
9999x 6789=67883211. You can use a calculator!
1234 + 1234 = 2468