This math chapter workbook on "Multiplying and Dividing Decimals" introduces multiplying decimals by whole numbers and decimals by decimals. The workbook covers dividing decimals by whole numbers and decimals by decimals.

For example, students will encounter problems such as multiplying 3.6 by 2.5. First, they will learn to ignore the decimals and multiply 36 by 25 to get 900. They count the decimal places in the original numbers to find that the answer should have the decimal moved two points to the left, so 900 becomes 9. Another example is dividing 4.8 by 0.6, prompting students to multiply the dividend and divisor by 10 to eliminate the decimals. The problem becomes 48 divided by 6, and the quotient is 8.