What Are Whole Numbers – Rounding Whole Numbers – What Are Place Values – How To Round Whole Numbers

To day, I’ll show you video What Are Whole Numbers – Rounding Whole Numbers – What Are Place Values – How To Round Whole Numbers

In this video we discuss what are whole numbers, how to round whole numbers and what are place values. We go through an example of rounding whole numbers in detail and list the place values for whole numbers.

Transcript/notes
Whole numbers are the basic counting numbers, including zero, so, 0, 1, 2, 3, and so on. There is no fractional or decimal part, and no negatives.
Here are some examples of whole numbers, and non-whole numbers. The fraction 20 over 10 is a whole number, because it is equivalent to a whole number, 2.

Place values are the digits in a number, based on the positions of the digits. For example, the number 6 hundred 22 million, 44 thousand, 3 hundred 17.
Six hundred twenty two million, forty four thousand, three hundred seventeen. I have listed the place values for the digits in the columns above the number, starting with the ones on the right and going to the hundred millions on the left. And the place values can go higher as you see here.

And for numbers this large, we use commas between each group of 3 digits starting at the decimal point and moving to the left. Typically numbers with 4 digits, such as 4352, are not written with commas.

In business, many times rounding of whole numbers is required, especially with money amounts. There are 3 basic steps to doing this.
Number 1 is to locate the place of the digit to be rounded and underline it. Number 2 is to identify the digit to its right, and if that digit is 5 or more, increase the value of the digit being rounded by 1, if that digit is 4 or less, do not change the value of the digit being rounded. And number 3 is to change all of the digits to the right of the underlined digit to zeros.

As an example here are 3 numbers and what they need to be rounded to. For the first number, 429, to the nearest ten, so 2 is in the tens column, so underline it. The first digit to the right of the underlined digit is 9, which is greater than 5, so we need to increase the underlined digit by 1, so 2 becomes 3. And we need to change all of the digits to the right of the underlined digit to zero, so 9 becomes zero, and our final answer is 430.

The next number, 624,499 needs to be rounded to the nearest ten thousand. 2 is the digit in the ten thousands column, so it gets underlined. The first digit to the right of the underlined digit is 4, which is not 5 or more, so the value of the underlined digit does not change. And next we need to change all of the values of the digits to the right of the underlined digit to zeros, and our final answer is 620,000.

Here are a few more examples written out, and the key to rounding really is identifying the place of the digit being rounded and then checking if the digit to its right is 5 or greater.

0:00 What are whole numbers?
0:09 Examples of whole numbers
0:18 What are place values?
0:51 How to round whole numbers
1:19 Rounding examples

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What Are Whole Numbers – Rounding Whole Numbers – What Are Place Values – How To Round Whole Numbers uploaded in 2020-09-12 05:01:27 by Whats Up Dude