This practice book is aimed to compliment the exercises in the workbook of the Number Wise series. These additional exercises may help to address the needs of all or some of the students who need to practice to understand or consolidate certain skills learned in the workbook. This book may be used as classwork or homework to reinforce the acquisition of important knowledge and critical skills through repetitive practice. Certain questions may be more difficult than those found in the workbook to offer an opportunity for those students who are motivated by a challenge.