Child Safe
Parent Monitoring
Read, write, and compare decimals to thousandths
Overview
Numbers can be written in a variety of ways. We already know how to write whole numbers using expanded and word form. Rewriting decimals can be a bit trickier.
Consider the number 15.375
The number is already written in standard form. We want to rewrite it in both expanded and word form.
Expanded Form
To write a decimal in expanded form, we multiply each digit by its place value. It can be helpful to use the place value chart as a reference.
Word Form
When we write a decimal in word form, we use the word “and” to represent the decimal. We write everything before the decimal as a whole number. We use the place value of the last decimal number to express the numbers after the decimal.
Let’s look at 15.375 again.
Comparing two decimals
Once we understand the meaning of each digit, we can compare decimals to one another using the symbols below.
Let’s try comparing two decimals.
0.45 ___ .047
Step 1: Look at place value for each number
0.45
| Place Value Chart | |||||||
| thousands | hundreds | tens | ones | tenths | hundredths | thousandths | |
| 0 | . | 4 | 5 | ||||
.047
| Place Value Chart | |||||||
| thousands | hundreds | tens | ones | tenths | hundredths | thousandths | |
| . | 0 | 4 | 7 | ||||
Step 2: Compare the two numbers
We can see just by looking at the place value chart that 0.45 is greater than .047 because we know that the tenths place is 10 times greater than the hundredths place.
Step 3: Insert the symbol
Look back at the comparison statement. We want the statement to read, 0.45 is greater than .047. So, we insert the greater than symbol.
K8 New
Free
save 68%
Our monthly subscription plan offers unlimited access to all of our premium video lectures, practice questions, and quizzes. If you want on-demand access to our educational resources, this plan is perfect for you.
Our data shows that 96% of those who get our award-winning K-8 Math & Reading program stick with it.
These are parents just like you with kids just like yours. They start watching and… keep going.
Write the number 95.321 in expanded form.
Answer
Multiply each digit by its place value
27.5 =
Answer
Each digit is multiplied by its place value.
3.26 ______ 3.62
A. >
B. <
C. =
Answer
B. <
The tenths place makes it less than.
Write the number 7.869 in expanded form
Answer
Each digit is multiplied by its place value.
0.80 _______ 0.8
A. >
B. <
C. =
Answer
C. =
The zero in the hundredths place does not change the value of the first number.
Click on the quizzes below to test your knowledge.
Remember: Practice Makes Progress
1
Please select your grade level:
2
Please select a subject that interests you:
1
Start your practice test:
1
Start your practice test:
Read more!
Create your free account to see answers!
Welcome
You have successfully logged in.
Click to show more