Max Maths, Year 5, Work Book, Doubling and halving decimal numbers

The Max Maths Year 5 Workbook provides a practical exercise on doubling and halving decimal numbers, aimed at enhancing students' numerical fluency. In Practice 3, the workbook presents a series of tasks that require students to apply their understanding of multiplication and division to decimal numbers. The first activity involves completing sentences that compare the doubling and halving of whole numbers to their decimal counterparts. For example, students must recognise that if double 75 is 150, then double 7.5 is 15 and double 0.75 is 1.5. Similarly, they need to find half of given numbers such as 234, and then apply the same principle to decimal numbers like 23.4 and 2.34.

The second part of the exercise challenges students to directly halve or double a set of decimal numbers. They are given numbers such as 26.8 and 2.70 to halve, and 5.8 and 0.74 to double. This activity is designed to strengthen students' skills in dealing with decimal places and understanding the relationship between division by two and multiplication by two, within the context of decimal numbers. The workbook's approach ensures that students not only practice arithmetic operations but also deepen their comprehension of numerical relationships and patterns, which are fundamental concepts in mathematics education.