Which item is not described as a primary method of indicating distance on the highway maps in the material?

• A. Map bar scale
• B. Red Pointers
• C. Distances between junctions and towns (black numbers)
• D. Subtract exit numbers

Answer: (A)

Distance on highway maps is shown in direct, map-related ways: a map bar scale lets you translate map distance into real miles, red pointers mark mileage-related points along the route, and black numbers between junctions and towns give the actual distances. Subtracting exit numbers isn’t a built-in distance indicator on these maps; it’s more of a rough estimation trick that relies on the spacing of exits and isn’t a reliable, direct measure provided by the map itself. So the item that isn’t described as a primary method is subtract exit numbers.