# Base ten blocks and numbers

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##### Intros
###### Lessons
1. Introduction to Base Ten Materials
Overview of lesson
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##### Examples
###### Lessons
1. Representing Numbers with Blocks
Show these numbers using base ten blocks
1. 28
2. 346
3. 105
2. Numbers from Blocks
What number is this?

3. Regrouping
Regroup hundreds as thousands, tens as hundreds and ones as tens
1. 2 hundreds + 12 ones + 17 ones
2. 9 hundreds + 14 tens + 15 ones
4. Representation in Expanded Form (Using numerals and words)
Write the number in expanded form using numerals and words
1. 89
2. 831
3. 4216
5. Representation in Expanded Form (Using numerals)
Write the number in expanded form using numerals
1. 74
2. 561
3. 3183
###### Topic Notes

In this lesson, we will learn:

• How to use base ten materials to represent numbers
• Writing numbers in expanded form

Notes:

• Regrouping

• 10 ones can be regrouped into 1 ten:

10 tens can be regrouped into 1 hundred:

10 hundreds can be regrouped into 1 thousand