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Explore The KitsNumbers in Expanded & Word Form (3-Digit Numbers)
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What you will learn from this videoWhat you will learn
- We'll learn how to write 3-digit numbers in expanded form.
- We'll also learn how to write 3-digit numbers in word form.
- And we’ll explore how this knowledge can help us put together puzzles, write creative stories, and feed our pets!
- Discussion Questions
Before Video
How do you write the number fifty-seven? Explain.ANSWERNumbers that start with fifty start with a 5. Then there is 7. 57
Ninety-four. The 9 is in the tens place, that means it's ninety. The 4 is in the ones place. So it is ninety-four.
4 tens, 8 ones; 3 tens, 18 ones
6 tens, 0 ones; 5 tens, 10 ones
7 tens, 9 ones; 6 tens, 19 ones
After Video
How do you write a 3-digit number in expanded form?ANSWERWrite the value of each digit. Then add them together. For example, in 123, the 1 represents a value of 100, the 2 represents a value of 20, and the 3 represents a value of 3. Add the values together to get the expanded form, 100 + 20 + 3.
First, write the number of hundreds using words. Then, write the name of the number after the hundreds place. For example, 123 has a 1 in the hundreds place, so write “one hundred.” Then write the number after the hundreds place, “twenty-three.” In word form, 123 is one hundred twenty-three.
100 + 90 + 7; one hundred ninety-seven
300 + 10; three hundred ten
900 + 6; 906
- Vocabulary
- Numbers DEFINE
Symbols used to show how many of something you have.
- 3-digit number DEFINE
A 3-digit number is a number that has digits only in the hundred, tens, and ones places.
- Place value DEFINE
The value of a digit based on its position in a number.
- Standard form of a number DEFINE
The form of a number that uses only digits to show the value. For example, 631.
- Expanded form DEFINE
Another way to show the value of each digit in a number. To write a number in expanded form, write it as the sum of the values of its digits. For example, 631 = 600 + 30 + 1.
- Word form DEFINE
The name of a number. For example, the word form of 631 is six hundred thirty-one.
- Numbers DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide