How do you write the number fifty-seven? Explain.

Numbers that start with fifty start with a 5. Then there is 7. 57

[Write 94 on the board.] What number is this? How do you know?

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.

How can you break 48 into tens and ones? Is there another way?

4 tens, 8 ones; 3 tens, 18 ones

How can you break 60 into tens and ones? Is there another way?

6 tens, 0 ones; 5 tens, 10 ones

How can you break 79 into tens and ones?

7 tens, 9 ones; 6 tens, 19 ones

How do you write a 3-digit number in expanded form?

Write 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.

How do you write a 3-digit number in word form?

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.

What is 197 in expanded form and word form?

100 + 90 + 7; one hundred ninety-seven

Numbers 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.ANSWER
  - Numbers that start with fifty start with a 5. Then there is 7. 57
  [Write 94 on the board.] What number is this? How do you know?ANSWER
  - 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.
  How can you break 48 into tens and ones? Is there another way?ANSWER
  - 4 tens, 8 ones; 3 tens, 18 ones
  How can you break 60 into tens and ones? Is there another way?ANSWER
  - 6 tens, 0 ones; 5 tens, 10 ones
  How can you break 79 into tens and ones?ANSWER
  - 7 tens, 9 ones; 6 tens, 19 ones
- After Video
  How do you write a 3-digit number in expanded form?ANSWER
  - Write 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.
  How do you write a 3-digit number in word form?ANSWER
  - 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.
  What is 197 in expanded form and word form?ANSWER
  - 100 + 90 + 7; one hundred ninety-seven
  What is 310 in expanded form and word form?ANSWER
  - 300 + 10; three hundred ten
  What is nine hundred six in expanded form and standard form?ANSWER
  - 900 + 6; 906
Vocabulary
- Numbers DEFINE
- 3-digit number DEFINE
- Place value DEFINE
- Standard form of a number DEFINE
- Expanded form DEFINE
- Word form DEFINE
Reading Material
Practice Word Problems
Practice Number Problems
Lesson Plan
Teacher Guide
Assessment
Online Quiz Game Quiz PDF Exit Ticket