I don't know those programs specifically, but any time a kid is struggling in school, part of my advice is to try to figure out how they learn best - do they remember things better if they see rather than hear them? put them to music? involve movement? etc. - Then help them "translate" the material into the "language" that works best for them.
Times tables, for example, can be practiced to the old Schoolhouse Rock songs, or by bouncing a basketball, or writing them in rainbow colored pens, or with your finger on a tray of shaving cream (or sprinkles) or writing them in chalk on the driveway and jumping on them... Whatever matches the way the child naturally interacts with the world.