Become the Greatest Mathematician with 12 Best Old-Fashioned Books About Arithmetic & Mathematics

Centre for Innovation in Mathematics Teaching
Mathematics Enhancement Programme
This is a UK site that essentially has a free curriculum for grades K-12. You must email and ask for a password to a few of the texts, but they are cooperative with homeschoolers. At first the site seems a little challenging to navigate, but quickly becomes self-explanatory

Cleave Books
Free Teacher Resources for the Above Programme

MaxMath.com

PurpleMath.com

Understanding Algebra (textbook)

The Normal Mental Arithmetic:
a thorough and complete course by analysis and induction
by Edward Brooks
19th Century School books

The North American Arithmetic:
part first, containing elementary lessons
by Frederick Emerson
19th Century School Books

First Book in Arithmetic
by Milton B. Goff
19th Century School Books

First lessons in numbers: oral and written
on the basis of works by Benjamin Greenleaf.
Henry B. Maglathlin
19th Century School Books

A First Book in Algebra
by Wallace C. Boyden
Gutenberg Text

Philosophy and Fun of Algebra
by Mary Everest Boole
Gutenberg Text

The Foundations of Geometry
by David Hilbert
Gutenberg Text

Elements of Abstract and Linear Algebra
Edwin H. Connell
pdf and other versions

Ray’s Algebra
by Joseph Ray
Page Images at 19th Century Schoolbooks

The First 100,000 Prime Numbers
by Unknown
Gutenberg Text

A List of Factorial Math Constants
by Unknown
Gutenberg Text

Mathguide

Ray’s Arithmetic on CD, Basic Math through Advanced Calculus: $59