When your fourth grader is ready to move on to multiple-digit addition and subtraction, these riddles will make review fun and challenging.

This workbook is packed with worksheets that let kids sharpen math skills by practicing the four basic math operations as well as factoring.

Students familiarize themselves with pre-algebra concepts and vocabulary — including factors, base numbers, exponents, variables, and value — in this introductory overview. This workbook offers plenty of hands-on practice so that students can