7142.85÷3.7÷2.7×1.7×0.7
99×1.01×77.78＋66.66×33.33
小学五年级题目如何巧算
答案:5 悬赏:0 手机版
解决时间 2021-03-08 15:52
- 提问者网友：一抹荒凉废墟
- 2021-03-07 16:48
最佳答案
- 五星知识达人网友：天凉才是好个秋
- 2021-03-07 18:10
7142.85÷3.7÷2.7×1.7×0.7.
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
全部回答
- 1楼网友：一叶十三刺
- 2021-03-07 22:20
7142.85÷3.7÷2.7×1.7×0.7.
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85 99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
为什么大家的答案都一样呢？？？
- 2楼网友：低音帝王
- 2021-03-07 20:46
7142.85÷3.7÷2.7×1.7×0.7.
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
这是简算
- 3楼网友：你可爱的野爹
- 2021-03-07 19:19
7142.85÷3.7÷2.7×1.7×0.7.
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
应该是的哦
- 4楼网友：鸠书
- 2021-03-07 18:49
7142.85÷3.7÷2.7×1.7×0.7.
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122
应该是的哦
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