I've created a lot of SVG files for my wikibook project Matematik för årskurs 7-9 (in Swedish).

Geometry edit

Orthogonal view. Made in text editor

The following were generated in Blender/Freestyle except for the orthogonal versions that were made in a text editor.

Number lines edit

Fractions edit

Other edit

Calculations edit

Subtraction edit

Multiplication edit

Division edit