简便算法哦
答案:6 悬赏:30 手机版
解决时间 2021-03-17 09:56
- 提问者网友:杀手的诗
- 2021-03-16 12:56
简便算法哦
最佳答案
- 五星知识达人网友:蕴藏春秋
- 2021-03-16 13:14
0.258×44.8+0.677×258-1.25×2.58
=2.58×4.48+6.77×2.58-1.25×2.58
=2.58×(4.48+6.77-1.25)
=2.58×10
=25.8
=2.58×4.48+6.77×2.58-1.25×2.58
=2.58×(4.48+6.77-1.25)
=2.58×10
=25.8
全部回答
- 1楼网友:轻熟杀无赦
- 2021-03-16 19:56
整个式子提出公因式258
则为258*(0.448+0.6777-0.0125)
正常括号里应该算出的是整十,所以你最好检查下题目有没有抄错
括号里面先算减法
258*(0.448+0.6652)=258*1.1132=287.2056
则为258*(0.448+0.6777-0.0125)
正常括号里应该算出的是整十,所以你最好检查下题目有没有抄错
括号里面先算减法
258*(0.448+0.6652)=258*1.1132=287.2056
- 2楼网友:孤独入客枕
- 2021-03-16 18:26
=0.258*448+0.258*677.7-125*0.258
=0.258(448+677.7-125)
=0.258*1000.7 (如果算式中0.6777中是0.677,就是0.258*1000了,结果是258)
=258.1806
=0.258(448+677.7-125)
=0.258*1000.7 (如果算式中0.6777中是0.677,就是0.258*1000了,结果是258)
=258.1806
- 3楼网友:荒野風
- 2021-03-16 16:54
题目抄错了吧
0.258*448+0.677*258-1.25*25.8吧?
=0.258*448+677*0.258-125*0.258
=0.258*(448+677-125)
=0.258*1000
=258
0.258*448+0.677*258-1.25*25.8吧?
=0.258*448+677*0.258-125*0.258
=0.258*(448+677-125)
=0.258*1000
=258
- 4楼网友:冷風如刀
- 2021-03-16 15:23
题中是是0.677吧?是的话:
0.258×44.8+0.677×258-1.25×2.58
=2.58×4.48+6.77×2.58-1.25×2.58
=2.58×(4.48+6.77-1.25)
=2.58×10
=25.8
0.258×44.8+0.677×258-1.25×2.58
=2.58×4.48+6.77×2.58-1.25×2.58
=2.58×(4.48+6.77-1.25)
=2.58×10
=25.8
- 5楼网友:老鼠爱大米
- 2021-03-16 14:50
0.258x448+0.6777x258-1.25x2.58
=258x0.448+258x0.6777-258x0.0125
=258x(0.448+0.6777-0.0125)
=258x(0.448+0.6652)
=258x1.1132
=287.2056
=258x0.448+258x0.6777-258x0.0125
=258x(0.448+0.6777-0.0125)
=258x(0.448+0.6652)
=258x1.1132
=287.2056
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