Spectrum Math workbooks

I'm pretty sure instructivist recommended the Spectrum books. I haven't used them yet, but probably will. Spectrum books have pre- and post-tests for each topic along with lots of word problems. (Other subjects, too.)

Spectrum Math Kindergarten
ISBN-10: 076963690X
ISBN-13: 978-0769636900
Revised updated edition (I’ve never seen the updated editions):
ISBN-10: 0769677916
ISBN-13: 978-0769677910

Spectrum Math Grade 1
ISBN-10: 1561899011
ISBN-13: 978-1561899012

Spectrum Math Grade 2
ISBN-10: 156189902X
ISBN-13: 978-1561899029

Spectrum Math Grade 3
ISBN-10: 1561899038
ISBN-13: 978-1561899036

Spectrum Math Grade 4
ISBN-10: 1561899046
ISBN-13: 978-1561899043

Spectrum Math Grade 5
ISBN-10: 1561899054
ISBN-13: 978-1561899050

Spectrum Math Grade 6
ISBN-10: 1561899062
ISBN-13: 978-1561899067

Spectrum Math Grade 7 by Thomas J. Richards
ISBN-10: 0769636977
ISBN-13: 978-0769636979

Spectrum Math Grade 8, by Thomas J. Richards
ISBN: 1-56189-908-9
ISBN-10: 1561899089
ISBN-13: 978-1561899081
Revised (haven’t looked at this):
ISBN-10: 0769637086
ISBN-13: 978-0769637082

Instructional Fair Workbooks
Skill Builders Word Problems Workbooks (fantastic & cheap $3.95/book)
Skill Builders Workbooks (all)
mixed review workbooks
Spectrum Math workbooks