计算 12345×12346-12344×12343=_.

问题描述:

计算 12345×12346-12344×12343=______.

12345×12346-12344×12343
=(12344+1)×12346-12344×12343
=12344×12346+12346-12344×12343
=12344×(12346-12343)+12346
=12344×3+12344+2
=12344×4+2
=49378
故答案为:49378.