We would say that typically start with level B, but remember each and every child is unique.

If you have completed the online placement form, and it shows level b would be acceptable, then I would begin with B.

The reason on this also being that level B is still considered as an introductory level reviewing many of the same concepts that are gone over in Level A.

Once again, each child is different, and you know your child's abilities best! So if you feel that level A is the best path to take, then follow through with that!

Let me know if we can be of further assistance!

Level A really helped my DD with the counting - now she usually puts them in sets of 5 or 10 or uses the abacus.