Max Maths, Year 5, Work Book, Rounding off decimals

In this exercise from the Max Maths Year 5 Workbook, students are asked to practice rounding off decimal numbers to the nearest whole number. Rounding decimals is a fundamental skill in mathematics that helps in estimating and simplifying numbers for easier calculations and understanding. The process is straightforward: look at the digit in the tenths place to determine whether the number will round up or down to the nearest whole number.

To illustrate, let's consider the number 2.4. The digit in the tenths place is 4. Since this digit is less than 5, we round down the number. Thus, 2.4 rounded to the nearest whole number is approximately 2. The workbook provides further examples for practice: (a) 5.09 has a tenths digit of 0, so it rounds down to approximately 5. (b) 37.62 has a tenths digit of 6, so it rounds up to approximately 38. (c) 100.52 has a tenths digit of 5, and according to rounding rules, it rounds up to approximately 101. Lastly, (d) 252.32 has a tenths digit of 3, so it rounds down to approximately 252. Through these exercises, students become adept at rounding decimals and applying this skill in various mathematical contexts.