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1992×198.9-1991×198.8 过程

答案:6  悬赏:20  手机版
解决时间 2021-03-27 05:25
  • 提问者网友:箛茗
  • 2021-03-26 21:34
1992×198.9-1991×198.8 过程
最佳答案
  • 五星知识达人网友:一叶十三刺
  • 2021-03-26 23:05
1992×198.9-1991×198.8
=(1991+1)×198.9-1991×198.8
=1991×198.9-1991×198.8+198.9
=1991×(198.9 -198.8)+198.9
=199.1+198.9
=398
全部回答
  • 1楼网友:酒安江南
  • 2021-03-27 03:06
(1991+1)x198.9-1991x(198.9-0.1)=198.9+199.1=398
  • 2楼网友:过活
  • 2021-03-27 02:11
=1991*(198.8+0.1)+198.9-1991*198.8
=1991*0.1+198.9
=199.1+198.9
=398
  • 3楼网友:行雁书
  • 2021-03-27 01:40
1992×198.9-1991×198.8
=(1992-1991)×198.8
=198.8
望采纳
  • 4楼网友:三千妖杀
  • 2021-03-27 00:24
=(1991+1)*198.9-1991*198.8
=1991*198.9+198.9-1991*198.8
=1991*(198.9-198.8)+198.9
=199.1+198.9
=200-0.9+200-1.1
=400-2
=398
  • 5楼网友:一把行者刀
  • 2021-03-26 23:39
原式=(1991+1)×198.9-1991×198.8
=1991×198.9-1991×198.8+1×198.9
=1991×(198.9-198.8)+198.9
=1991×0.1+198.9
=199.1+198.9
=398
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