Show that multiplication of two numbers can be done in any order (commutative) and division of one number by another cannot.

What this means, in plain words

Comparing asks which is larger or smaller. Ordering puts several of them in a line from smallest to largest.

Multiplication is repeated addition of equal groups. Division shares a total into equal groups, or works out how many groups fit.

Number work here is about how our number system is built, and about knowing what a number is worth rather than just how it is spelled.