Round Any Whole Number to a Required Degree of Accuracy 3 - Reasoning

The exercise provided is a reasoning task focused on rounding whole numbers to various degrees of accuracy, specifically to the nearest ten, hundred, and hundred thousand. The numbers presented are 5,456,872, 3,211,006, 7,655,349, and 1,112,567. Students are required to round these numbers to the specified degrees of accuracy and then spot and correct any mistakes in the given answers.

Correctly rounded, the number 5,456,872 should be 5,456,870 when rounded to the nearest ten, 5,456,900 when rounded to the nearest hundred, and 5,500,000 when rounded to the nearest hundred thousand. The number 3,211,006 rounds to 3,211,000 for both the nearest ten and hundred, and to 3,200,000 for the nearest hundred thousand. The number 7,655,349 rounds to 7,655,350 for the nearest ten, 7,655,300 for the nearest hundred, and 7,700,000 for the nearest hundred thousand. Lastly, 1,112,567 rounds to 1,112,570 for the nearest ten, 1,112,600 for the nearest hundred, and 1,100,000 for the nearest hundred thousand. Students must compare these correct answers to the provided answers and identify any discrepancies, thereby practicing their understanding of place value and rounding principles.