# Write Three-Digit Numbers In Unit Form

These lessons help Grade 2 students learn how to write base ten three-digit numbers in unit form and show the value of each digit.

Common Core Standards: 2.NBT.3, 2.NBT.1

### NYS Math Module 3 Grade 2 Lesson 5

#### How To Write A Number In Unit Form?

The number 234 is written as 2 hundreds, 3 tens, 4 ones in unit form.

The following table gives some examples of numbers written in standard form, unit form, word form and expanded form. Scroll down the page if you need more explanations and worksheets about unit form.

#### Lesson 5 Concept Development

Guide students through the following sequence of activities.

• Model numbers in the place value boxes.
• Students represent them with their place value cards.
• Students say the number in word form and unit form.

#### Lesson 5 Exit Ticket

1. Look at the place value cards. What is the value of the 6?
2. What is another way to write 5 ones 3 tens 2 hundreds?
3. What is another way to write 6 tens 1 hundred 8 ones?
4. Write 905 in unit form.

#### Lesson 5 Homework

1. What is the value of the 7 in 764?
2. Make number bonds to show the hundreds, tens, and ones in each number. Then write the number in unit form
a. 333
1. Draw a line to match unit form with number form.
1 hundred 1 one =
1 ten 1 one =
7 tens 1 one =
7 hundreds 1 one =
1 hundred 1 ten =
7 hundreds 1 ten =

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.