Thursday, July 17, 2014

Comparing and Ordering Decimals


Comparing and ordering decimals use the same technique so this chapter will be really easy. So lets first do comparing of decimal numbers and to compare the decimal numbers we are going to be using the symbols >, <, and =. So lets take the two decimal numbers 5.23 and 5.25:

5.23 __ 5.25

What we need to do is we have to start by comparing the numbers from left to right like this:
So now we know that in the number 5.25 the number 5 which is in the hundredths place value is greater than the 3 of the decimal number 5.23. That makes the comparison:

5.23 < 5.25

Now let's order the following decimal numbers from least to greatest form:

 2.6, 2.3, 2.2, and 2.9

To do this we will have to use the same method we used to compare the two decimal numbers. Since we know that all the numbers have the number 2 as the whole number all we have to do is look at all the numbers after the decimal point and put them in numerical order:

2.6           2.2
2.3           2.3  
2.2           2.6
2.9           2.9

{ The list to the left is the original order the decimals were given. The list to the right is in least to greatest form.}

So the ordered form of the decimal numbers are 2.2, 2.3, 2.6, and 2.9.
Now try some of these and make sure to watch the video on YouTube.

 Sheet 1 Comparing and Ordering Decimals

Sheet 2 Comparing and Ordering Decimals

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