Sheri rounds 678 to 680. What place does she round to?
The correct answer and explanation is:
Sheri rounds 678 to 680, rounding to the tens place.
To explain this, rounding a number involves adjusting the digits based on a specific place value, depending on the number’s proximity to the value it should round to. In this case, Sheri has rounded 678 to 680. Let’s break it down:
- The number 678 consists of three digits: 6 in the hundreds place, 7 in the tens place, and 8 in the ones place.
- When rounding to the nearest ten, we focus on the tens place (which is the 7 in 678). The rule for rounding is:
- If the digit in the ones place is 5 or higher, the tens place digit increases by 1.
- If the digit in the ones place is 4 or lower, the tens place stays the same.
In this instance, the digit in the ones place is 8, which is greater than 5. Therefore, the tens place digit (7) is increased by 1, resulting in the number 680. This shows that Sheri rounded 678 to 680 by adjusting to the nearest multiple of 10, which is 680.
So, Sheri rounded to the tens place because she considered the tens digit (7) and rounded based on the value in the ones place (8). This is a standard procedure for rounding numbers, particularly when rounding to the nearest ten.