Pixel Ratios
The first example of numeracy skills that I have demonstrated through various pieces and projects would be utilizing pixels and ratios. A more specific example of this would be through calculating things like image resolution for different images, taking into account how/when they will be used. Pixel ratios for resolution are highly integral to things such as image quality for example.
Mounting & Measurement
A second example of numeracy skills would be, mounting and experience working in various units of measurement. This skill can be seen demonstrated numerous times in pieces that I have created and worked on while studying/working in graphic design.