Round any whole number to a required degree of accuracy 4 - Reasoning

In an exercise focused on reasoning within the topic of Number and Place Value for Year 6 students, children are presented with a real-world application of rounding numbers to a required degree of accuracy. The task involves estimating the total population of Shanghai based on two different statements provided by fictional characters, Rosie and Zach. Rosie states that the total population of Shanghai is 26 million when rounded to the nearest million. Zach offers a more precise figure, suggesting the population is 26.3 million to the nearest hundred thousand.

Using the information given by both Rosie and Zach, students are asked to estimate the population of Shanghai. They must apply their understanding of rounding numbers to deduce that any number between 26,250,000 and 26,349,999 would round to 26 million when considering millions and to 26.3 million when rounded to the nearest hundred thousand. This exercise not only tests the students' numerical skills but also encourages them to think critically about the use of estimation and rounding in practical contexts.