I created this set of dishcloths for a colleague who is engaged to a mathmatician.

The set contains the following 9 dishcloths:
plus, minus, multiply, divide, equal, greater than, less than or equal to, parenthesis and calculator.

There is also an advanced math set.

Errata

Equal
Row 21: K4, P23, K4
Row 39: K4, P23, K4

Multiply
Row 23: K4, P6, K4, P3, K4, P6, K4
Row 39: K4, P4, K4, P7, K4, P4, K4