Sentence:  [...] would recite the grave, tribulationary instructions on just how every <WSD>numberful</WSD> sheet was to be folded untilitwas a contrivementjust shyof becoming aweakbodied box, and then eachwas tobe walked singlefile up tothe deskso that the teacher [...] 
Meaning of the word marked with <WSD> tags:  Full of numbers.