99×98+198用简便方法计算
答案:2 悬赏:50 手机版
解决时间 2021-11-21 11:24
- 提问者网友:原来太熟悉了会陌生
- 2021-11-21 06:13
99×98+198用简便方法计算
最佳答案
- 五星知识达人网友:空山清雨
- 2021-11-21 06:28
原式
=99x98+98+100
=(99+1)x98+100
=100x98+100
=100x(98+1)
=100x99
=9900
供参考。追问能在简单吗追答原式
=99x98+99x2
=99x(98+2)
=99x100
=9900
=99x98+98+100
=(99+1)x98+100
=100x98+100
=100x(98+1)
=100x99
=9900
供参考。追问能在简单吗追答原式
=99x98+99x2
=99x(98+2)
=99x100
=9900
全部回答
- 1楼网友:罪歌
- 2021-11-21 06:56
99×98+198
=99x98+98+100
=(99+1)x98+100
=100x98+100
=100x(98+1)
=100x99
=9900
=99x98+98+100
=(99+1)x98+100
=100x98+100
=100x(98+1)
=100x99
=9900
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