I have a BA in math but I still has to really stop & think every time I encounter 7x8. Was never good at timed arithmetic tests. I wasn't that good at memorizing math facts but was good at concepts. Your daughter really isn't alone.
From my experience with IEP/504 what you probably want to do is come up with two different kinds of suggestions, Accommodations and remediation.
The idea of accommodations is to keep her working with the rest of her class (or at her intellectual level). Use of a calculator, or a times (or addition) chart, allowing her to use her fingers or draw dots or pictures. Extra time (or even no limits) on tests.
Remediation would be some time with a resource specialist or a tutor working on these facts. The key would be to ONLY work on these types of facts when that is in fact the skill. Like an accommodation for a dyslexic where spelling errors are ignored unless it's a spelling test. As others have said remediation might not really help so I wouldn't put a lot of time here.
One thing I do is I've learned to do imagine fingers in my head thus no one knows (except the time I'm taking) I'm using fingers. Another trick I have used to learn math facts is building of charts so I can visually see adding and multiplication as patterns. Making and building & reusing grid charts. And just doing math problems over & over again even with the accommodations above. What is important is that she doesn't think she is bad at math because she can't memorize math facts.
