If you have the math curriculum name I can give you more specific information.
Please, do not blame your daughter. Given direct, explicitly taught directions, worked examples and practice problems from a competent tutor I’m positive she will do just fine. ADHD kids thrive on clear structure, not fuzzy math. Her time is better spent with a tutor or in RTI simply because the instruction will be there. The regular class is a joke.
Have the tutor look into Saxon Math, or the Singapore Math series.
Really parents, so many kids being diagnosed with a math disability. Where is the outrage against these math textbooks?