6th Grade math is comsuming our lives or I'm not smarter than a 5th grader

We have been working at least a couple of hours each night on big girls math homework getting ready for TAKS. Even with all of this work we are still a little concerned about the outcome... I don't want to blame her teacher but her lessons aren't getting through to the big girl.... Tonight as both parents are going over answers and helping her with problems she wasn't getting, the little girl decided we need to help her with her homework. So, we did, we helped... three of us doing three digit subtraction...at least I understood it without checking the book to make sure I was doing it correctly... she really needed no help, she just needed us to sit by her and make sure the answers were right. Think she really just needed us to sit by her...Hope she is still good in math in 6th grade!