645×180-245怎样简便计算

2025-04-08 05:04:35
推荐回答(2个)
回答1:

115855
解析:
645×180-245
=645×(200-20)-245
=129000-12900-245
=129000-13000+100-245
=116000-145
=115855

回答2:

645×180-245怎样简便计算
645×180-245
=116100-245
=115855
直接计算
没有简算