I get so happy when a company gives out great free ebooks for homeschool, classroom etc. Carson-Dellossa this month is featuring two you can get too: Brainteasers (Grades 2-3 and 4-5)!
They describe them as helpful for:
Build higher-level thinking and processing skills with fun puzzles and problems. Concepts include matrix logic, sequencing, probability, place value, and geometry, as well as the basics such as addition, subtraction, multiplication, division, fractions, and money. Included in each book is a review test and an answer key. Supports NCTM standards.
Want to try this eBook for free? (I'm getting both of them :) )
Just click link above. Woohoo.