Visual studio 2015 页面上元素（按钮、文本框）之间的间距

我把它放在一个页面（）上，我想在不同的元素之间留一个间距，这样它们就不会像图片中那样在一起了。我希望他们能更广泛地分布在整个页面上，而不是相互追赶。 代码：

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如果需要间隙，请添加边距

    <TextBox x:Name="inputBox"
             InputScope="Number"
             RelativePanel.AlignVerticalCenterWithPanel="True"
             Height="32" 
             RelativePanel.AlignHorizontalCenterWithPanel="True"
             TextWrapping="Wrap" 
             PlaceholderText=""
             Margin="0,10,0,0"
             Width="71"/>

    <Button x:Name="Calculate" Content="Calculate"
            RelativePanel.AlignHorizontalCenterWithPanel="True"
            RelativePanel.AlignVerticalCenterWithPanel="True"
            RelativePanel.Below="inputBox"
            Margin="0,10,0,0"
            Click="Calculate_Click"/>

    <TextBlock x:Name="ValorFinal"
               RelativePanel.Below="Calculate"
               RelativePanel.AlignVerticalCenterWithPanel="True"
               RelativePanel.AlignHorizontalCenterWithPanel="True"
               TextWrapping="Wrap"
               Height="16" 
               Margin="0,10,0,0"
               Text="Total:"/>

    <TextBox x:Name="inputBox"
             InputScope="Number"
             RelativePanel.AlignVerticalCenterWithPanel="True"
             Height="32" 
             RelativePanel.AlignHorizontalCenterWithPanel="True"
             TextWrapping="Wrap" 
             PlaceholderText=""
             Margin="0,10,0,0"
             Width="71"/>

    <Button x:Name="Calculate" Content="Calculate"
            RelativePanel.AlignHorizontalCenterWithPanel="True"
            RelativePanel.AlignVerticalCenterWithPanel="True"
            RelativePanel.Below="inputBox"
            Margin="0,10,0,0"
            Click="Calculate_Click"/>

    <TextBlock x:Name="ValorFinal"
               RelativePanel.Below="Calculate"
               RelativePanel.AlignVerticalCenterWithPanel="True"
               RelativePanel.AlignHorizontalCenterWithPanel="True"
               TextWrapping="Wrap"
               Height="16" 
               Margin="0,10,0,0"
               Text="Total:"/>