I first thought one could use Cambria for copy text (in Word), switching to Cambria Math only when needed (when a character is needed that is not present in Cambria). This does not seem to work that well.

For example, if I need the minus-or-plus sign “±”, I cannot take it from Cambria, but if I use it from Cambria Math, it has a shape rather different from the style of “±”, “+”, and “–” in the text, if it is written in Cambria.

Similarly, the multiplication sign “×” is much larger in Cambria Math than in Cambria.

The obvious solution would be to use Cambria Math as copy text font, for uniformity. But Cambria Math lacks italic and bold. (Word’s formula editor uses Cambria Math by default and can do italic and bold, but it gets them from Plane 1 – they are special mathematic italic and mathematic bold characters, not italic and bold glyphs for normal characters.)

Is there any better approach than using Cambria Math for copy text and switching to Cambria when italic or bold is needed?