Newbie Question - Adjusting numeric inputs

I am new to Filter Forge and having trouble with a basic task.

I am trying to take a 'Value Control' and use it to control the scale of two different 'Perlin Noise' components.

For the first perlin noise I want the 'Value Control' to be directly inputted into the 'Scale' property (easy to do). For the second perlin noise I want the 'Value Control' to be multiplied by 0.5 and then put into the 'Scale' parameter.

I suppose a simpler way of asking this is how do I do math on just straight numbers?

If anyone could point me in the right direction it would be greatly appreciated!

Thanks! I did not realise it would remap for for multiple 'gray' inputs, that is tremendously useful.