6666*5555-6665*2222=?的简便作法
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/22 19:56:00
6666*5555-6665*2222=?的简便作法
![6666*5555-6665*2222=?的简便作法](/uploads/image/z/7305614-62-4.jpg?t=6666%2A5555-6665%2A2222%3D%3F%E7%9A%84%E7%AE%80%E4%BE%BF%E4%BD%9C%E6%B3%95)
cf 用计算机算最简单了呗,嘿嘿. 6666*5555-6665*2222
=6666*5555-6665*2222-2222+2222
=6666*5555-6666*2222+2222
=6666*3333+2222
=2222*(9999+1)
=22220000
=6666*5555-6665*2222-2222+2222
=6666*5555-6666*2222+2222
=6666*3333+2222
=2222*(9999+1)
=22220000