Academic achievement in elementary

I have a 7 yo in 2nd year of lower elementary and we live in a great school district. she’s been at this Montessori since she was 3. I’ve noticed in elementary she’s done hardly any math. she can add but can’t mutiply or divide, hasn’t done fractions, I taught her to tell time, doesn’t know how to count money. when I’ve raised concerns, I’ve been told she doesn’t approach this work because shes insecure and that I need to trust the process. but she tells me she asks for math lessons and doesn’t get them. I’m leaning towards pulling her but want to make sure I’m not missing something. is this a reasonable response to me and to her? AITA? ha.