12345+12345=?

12345*12345=? 12345-12345= 12345+12345=? 12345 12345 12345 12345: 12345 1234+1234-12345-12345=? 12345*12345-12345*0 123454321/12345*12345-12346*12344= 123456×12345=? 54321+12345=?df 12345+67890=? 12345+45678=? 12345kg=( )吨? 12345-12345等于? 12345加12345