How to Round Numbers to a Specific Place Value | A Comprehensive Guide

When asked to round a place, only look at the digit next to the place.

When rounding a number to a certain place value, you need to consider the digit that is right next to that place

When rounding a number to a certain place value, you need to consider the digit that is right next to that place. This digit is called the rounding digit. Here’s how it works:

1. Look at the rounding digit: The digit immediately to the right of the place value you are rounding to. For example, if you are rounding to the nearest ten, look at the ones digit; if you are rounding to the nearest hundred, look at the tens digit.

2. Determine if rounding up or down is necessary: If the rounding digit is 5 or greater, you round up, which means increasing the digit by 1. If the rounding digit is 4 or less, you round down, which means keeping the digit as it is.

3. Change all the digits to the right to zero: After rounding, make sure to change all the digits to the right of the rounding digit to zero. This is necessary to maintain the desired place value.

4. Keep the digits to the left unchanged: All digits to the left of the rounding digit remain the same.

Let’s look at an example:

Round 237 to the nearest ten:
– The rounding digit is 3, which is less than 5, so we round down.
– Change all the digits to the right to zero.
– Thus, the rounded number to the nearest ten is 230.

Remember that if the rounding digit is exactly 5, you need to consider the digit to the left of it as well. For example, if you are rounding 45 to the nearest ten, the rounding digit is 5. As it is exactly in the middle, you round up to the nearest even number. In this case, the rounded number would be 50.

So, when rounding to a particular place value, it is essential to look at the digit next to that place and apply the rounding rules accordingly.

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