0.8+2.5+1.2+0.95+6.58+19+2.5怎么简便?
答案:3 悬赏:80 手机版
解决时间 2021-04-03 17:24
- 提问者网友:爱唱彩虹
- 2021-04-03 04:48
0.8+2.5+1.2+0.95+6.58+19+2.5怎么简便?
最佳答案
- 五星知识达人网友:煞尾
- 2021-04-03 06:03
见图
全部回答
- 1楼网友:酒醒三更
- 2021-04-03 07:05
(0.8+1.2)+(2.5+2.5)+(1-0.05)+(7-0.42)+(20-1)
=2+5+(1-1)-(0.05+0.42)+7+20
=34-0.47
=33.53
=2+5+(1-1)-(0.05+0.42)+7+20
=34-0.47
=33.53
- 2楼网友:深街酒徒
- 2021-04-03 06:29
 0.8+2.5+1.2+0.95+6.58+19+2.5
=0.8+1.2+2.5×2+0.95+6.58+19
=2+5+19.95+6.58
=7+20-0.05+6.58
=27+6.53
=33.53
=0.8+1.2+2.5×2+0.95+6.58+19
=2+5+19.95+6.58
=7+20-0.05+6.58
=27+6.53
=33.53
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