3/17×5.4+0.37×30/17+9.1÷17/14(简便计算)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 15:11:47
![3/17×5.4+0.37×30/17+9.1÷17/14(简便计算)](/uploads/image/z/346480-16-0.jpg?t=3%2F17%C3%975.4%2B0.37%C3%9730%2F17%2B9.1%C3%B717%2F14%28%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%89)
3/17×5.4+0.37×30/17+9.1÷17/14(简便计算)
3/17×5.4+0.37×30/17+9.1÷17/14(简便计算)
3/17×5.4+0.37×30/17+9.1÷17/14(简便计算)
=3/17×5.4+0.37×30/17+9.1×14/17
=3/17×5.4+0.37×10×3/17+9.1×14/17
=3/17×(5.4+3.7)+9.1×14/17
=3/17×9.1+9.1×14/17
=(3/17+14/17)×9.1
=1×9.1
=9.1
3/17×5.4+0.37×30/17+9.1÷17/14
=3/17×5.4+0.37×30/17+9.1×14/17
=3/17×(5.4+3.7)+9.1×14/17
=3×9.1/17+9.1×14/17
=9.1/17×(3+14)
=9.1