Question

Bobby rounds 603 to the nearest 10 he says it’s 610 is the correct wire not use a number line in words to explain your thinking

Answer 1

Bobby's rounding of 603 to the nearest ten as 610 is incorrect because the proper method of rounding dictates that since the ones digit is 3, we round down to 600.

Step-by-step explanation:

When Bobby rounds 603 to the nearest ten, he considers the digit in the ones place, which is a 3. By the rules of rounding, if the digit is 5 or higher, we round up, and if it's 4 or lower, we round down. Since the digit is a 3, we round down, keeping the tens place as is and changing the ones place to zero, making the correct rounded number 600, not 610. Bobby's assertion that 603 rounded to the nearest ten is 610 is incorrect.

In rounding numbers, we must always consider the digit to the immediate right of the digit we're rounding to. For rounding to the nearest ten, the focus is on the ones digit. If this digit is 5 or more, we add one to the tens digit. If it's less than 5, we leave the tens digit unchanged and adjust the ones digit to zero.

Answer 2

Given that we are rounding to the nearest ten, the answer must be a multiple of 10. 603 is between 600 and 610. Given that 600 is nearest to 603 than 610, then the correct answer is 600.