计算 12345×12346-12344×12343=______．_数学解答

计算 12345×12346-12344×12343=______．

人气：488 ℃　时间：2020-04-17 18:45:19

解答

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．