0.98乘以7.8等于多少.简便方法计算
答案:6 悬赏:80 手机版
解决时间 2021-01-30 05:45
- 提问者网友:泪痣哥哥
- 2021-01-29 18:30
0.98乘以7.8等于多少.简便方法计算
最佳答案
- 五星知识达人网友:掌灯师
- 2021-01-29 19:23
解:0.98×7.8
=(1-0.02)×7.8
=1×7.8-0.02×7.8
=7.8-0.156
=7.644
=(1-0.02)×7.8
=1×7.8-0.02×7.8
=7.8-0.156
=7.644
全部回答
- 1楼网友:痴妹与他
- 2021-01-30 00:01
7.8*1-7.8*0.02=7.644
- 2楼网友:一袍清酒付
- 2021-01-29 22:25
等于(1—0.02)乘以7.8
- 3楼网友:孤独入客枕
- 2021-01-29 22:07
(1-0.02)×(10-2.2)=10-2.2-0.2+0.044=7.8-0.2+0.044=7.6+0.044=7.644
- 4楼网友:归鹤鸣
- 2021-01-29 21:36
0.98*7.8=(1-0.02)*(8-0.2)=8-0.2-0.02*8+0.02*0.2=8-0.2-0.16+0.004=7.8-0.16+0.004=7.64+0.004=7.644
- 5楼网友:往事埋风中
- 2021-01-29 20:52
0.98×7.8
=(1-0.02)×7.8
=1×7.8-0.02×7.8
=7.8-0.156
=7.644
0.98×7.8
=(1-0.02)×(10-2.2)
=10-2.2-0.2+0.044
=7.8-0.2+0.044
=7.6+0.044
=7.644
=(1-0.02)×7.8
=1×7.8-0.02×7.8
=7.8-0.156
=7.644
0.98×7.8
=(1-0.02)×(10-2.2)
=10-2.2-0.2+0.044
=7.8-0.2+0.044
=7.6+0.044
=7.644
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