Place Value
Unit Review Sheet
These facts and definitions should be mastered throughout this unit. This page can be used for periodic review and study as you are finishing the unit and in the future.
Facts and Definitions
Lesson 1: What Is the Base-10 System?
- Base-10 number system: a commonly used number system that is based on 10 digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
- Digits: symbols 0 through 9 that are used to create numbers
- Unit block: a base-10 block that represents 1
- Ten rod: a base-10 block that represents 10
Lesson 2: What Is Place Value?
- Place value: the value of a digit based on its position in a number
Lesson 3: Tens
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Lesson 4: Distinguishing Tens and Ones
- Ones place: position on the right in a number
- Tens place: position to the left of the ones place
Lesson 5: Practice Time!
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Lesson 6: More Work With Tens and Ones
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Lesson 7: Building Numbers Using Tens and Ones
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Lesson 8: Reaching 100!
- Hundred flat: a base-10 block that represents 100
Lesson 9: Playing With Bigger Numbers
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Lesson 10: More Work With 100
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Lesson 11: Sequencing Numbers
- Sequence: order
Lesson 12: Comparing Numbers
- <: symbol that means "less than"
- >: symbol that means "greater than"
Lesson 13: 10 More and 10 Less
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Lesson 14: Working With Multiples of 10
- Multiple of 10: a number that has 0 in the ones place and a digit other than 0 in the tens place; 10, 20, 30, 40, 50, 60, 70, 80, 90
Lesson 15: More Practice With 10
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Final Project: Place Value BINGO!
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