What do paired number tables help us to understand?

Marco Hernandez

johna.blackburn

alaa.m.nassar

helton.chelsea

estudnicky

christian_nunez

tomasson

mhines

mmerrill

esmith

azahn6

lwilbur

aamyette

joanne.doherty

liudike11

amyguzowski

stephanie.accary

seldr29

marienekesa2