2.9×0.45+0.29+4.2+0.029×13的简便计算
答案:4 悬赏:20 手机版
解决时间 2021-11-28 13:50
- 提问者网友:杀手的诗
- 2021-11-27 16:43
2.9×0.45+0.29+4.2+0.029×13的简便计算
最佳答案
- 五星知识达人网友:怀裏藏嬌
- 2021-11-27 17:55
目测楼主抄题抄错了,应该是:
2.9×0.45+0.29×4.2+0.029×13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
中意stp保温工程的回答,请采纳。追问还真抄错了
2.9×0.45+0.29×4.2+0.029×13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
中意stp保温工程的回答,请采纳。追问还真抄错了
全部回答
- 1楼网友:慢性怪人
- 2021-11-27 20:44
原式=0.29×4.5+0.29×4.2+0.29×1.3
=0.29×(4.5+4.2+1.3)
=0.29×10
=2.9
=0.29×(4.5+4.2+1.3)
=0.29×10
=2.9
- 2楼网友:低血压的长颈鹿
- 2021-11-27 19:53
2.9×0.45+0.29+4.2+0.029×13
=0.029x(45+42+13)
=0.029X100
=2.9
=0.029x(45+42+13)
=0.029X100
=2.9
- 3楼网友:蓝房子
- 2021-11-27 18:45
2.9×0.45+0.29+4.2+0.029×13
=2.9×0.45+2.9+0.42+2.9×0.13
=2.9*(0.45+0.42+0.13)
=2.9*1
=2.9
=2.9×0.45+2.9+0.42+2.9×0.13
=2.9*(0.45+0.42+0.13)
=2.9*1
=2.9
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