Free Math Books

The Arithmetic Primer is adaptable to any grade K-8 It is more for the teacher but gives plenty of ides for teaching math!
http://books.google.com/books?id=twIAAAAAYAAJ&printsec=frontcover&dq=%22arithmetic+primer%22&as_brr=1&ei=7AeRR8_UIYKkiQG_-8G0Bw#PPR11,M1

Arithmetic primer Says Kindergarten but has multiplication in it along with addition so I am thinking that it is for an older kindergarten student.
http://books.google.com/books?id=N8YFFn_jYbYC&printsec=frontcover&dq=%22arithmetic+primer%22&as_brr=1&ei=7AeRR8_UIYKkiQG_-8G0Bw

The Arithmetic Reader for Second Grade Pupils
http://books.google.com/books?id=b10zKbvoZZoC&pg=PA1&dq=%22Hall%27s+Arithmetic%22&as_brr=1&ei=WQiRR6iTHJPuiQHN-4CrBw

Graded Exercises in Arithmetic Grade 6 part two (haven’t found part 1 yet! sorry)
http://books.google.com/books?id=2LAXAAAAIAAJ&printsec=frontcover&dq=%22graded+exercises+in+arithmetic%22&as_brr=1&ei=aguRR9-fMqeyiQHu0_2wBw

Graded Exercises in Arithmetic Grade 4  part  two (same situation)
http://books.google.com/books?id=5K8XAAAAIAAJ&printsec=frontcover&dq=%22graded+exercises+in+arithmetic%22&as_brr=1&ei=aguRR9-fMqeyiQHu0_2wBw

The Werner Arithmetic Parts 1, 2, &3
http://books.google.com/books?hl=en&id=VOVEAAAAIAAJ&dq=%22frank+h+hall%22+arithmatic&printsec=frontcover&source=web&ots=v9q4BfHBQS&sig=hMerj6eFh07YobTIK9fkExpa8XQ#PPP1,M1

First-Lessons in Arithmetic – This math book will provide home school parents and public school teachers a incomparable tool from the past to help their students master the fundamentals of arithmetic.
http://www.donpotter.net/education_pages/math.html

Rays Arithmetic Books
Primary level (K-3)
http://books.google.com/books?id=ntTy0NUjKHQC&printsec=frontcover&dq=Ray%27s+new+arithmetic+-report&lr=&as_brr=1&ei=YV6RR_aoJpGUiQHG5ZyqBw&ie=ISO-8859-1

Intellectual Level (3-6)
http://www.archive.org/download/raysnewintellect00rayjrich/raysnewintellect00rayjrich_bw.pdf

Practical Level (6-9)
http://www.archive.org/download/practicalarithme00rayjrich/practicalarithme00rayjrich_bw.pdf

Higher Level (9-12+) Answer Key
http://www.archive.org/download/raysnewhigherari00rayjrich/raysnewhigherari00rayjrich_bw.pdf
http://books.google.com/books?id=bK8XAAAAIAAJ&pg=PA215&dq=%22Ray%27s+Plane+and+Solid+Geometry%22&lr=&as_brr=1&ei=u2GRR6zUAo-oiQGzkv2sBw&ie=ISO-8859-1

Test examples for all Levels
http://books.google.com/books?id=53O66PcmMEEC&printsec=frontcover&dq=Ray%27s+new+arithmetic+-report&lr=&as_brr=1&ei=YV6RR_aoJpGUiQHG5ZyqBw&ie=ISO-8859-1