Place Value 5 is a grade 5/6 level math workbook that covers values in the millions and billions, rounding and estimating them, and using a calculator.
Some of the topics covered are:
The workbook is divided into 10 sections. Each section begins with a bite-sized introduction to a topic with an example, followed by practice exercises. Answers are in the back. The format is ideal for independent or parent-guided study. The Math Mammoth series of workbooks is highly recommended by K5 Learning!