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Questions and Answers
What is the result of adding two single-digit numbers together?
What is the result of adding two single-digit numbers together?
- Always a two-digit number
- Either a single-digit number or a two-digit number starting with 1 (correct)
- Always a single-digit number
- Either a single-digit number or a three-digit number
What is the 'Counting On' strategy in single-digit addition?
What is the 'Counting On' strategy in single-digit addition?
- Using the associative property
- Starting with the first addend and counting on the second addend (correct)
- Making ten to simplify addition problems
- Starting with the second addend and counting backwards
Which property states that the order of addends does not change the result?
Which property states that the order of addends does not change the result?
- Associative Property
- Inverse Property
- Distributive Property
- Commutative Property (correct)
What is the result of 8 + 2?
What is the result of 8 + 2?
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Why is it helpful to practice basic addition facts regularly?
Why is it helpful to practice basic addition facts regularly?
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Study Notes
Single-Digit Addition
Definition
Single-digit addition refers to the process of adding two single-digit numbers together.
Basic Facts
- Single-digit numbers range from 0 to 9.
- When adding two single-digit numbers, the result is always a single-digit number or a two-digit number starting with 1.
Addition Strategies
- Counting On: Start with the first addend and count on the second addend.
- Making Ten: Use the concept of making ten to simplify addition problems (e.g., 8 + 2 = 10).
Key Concepts
- Communative Property: The order of addends does not change the result (e.g., 2 + 3 = 3 + 2).
- Associative Property: The order in which addends are added does not change the result (e.g., (2 + 3) + 4 = 2 + (3 + 4)).
Examples
- 2 + 3 = 5
- 5 + 1 = 6
- 8 + 2 = 10
Tips and Tricks
- Use visual aids like number lines or counting blocks to help understand the concept of addition.
- Practice basic facts regularly to build fluency.
Single-Digit Addition
Definition and Basics
- Single-digit addition involves adding two single-digit numbers (0-9) together, resulting in a single-digit or two-digit number starting with 1.
Strategies
- Counting On: Start with the first addend and count on the second addend to find the sum.
- Making Ten: Use the concept of making ten to simplify addition problems (e.g., 8 + 2 = 10).
Properties of Addition
Commutative Property
- The order of addends does not change the result (e.g., 2 + 3 = 3 + 2).
Associative Property
- The order in which addends are added does not change the result (e.g., (2 + 3) + 4 = 2 + (3 + 4)).
Examples and Applications
- 2 + 3 = 5
- 5 + 1 = 6
- 8 + 2 = 10
Tips for Success
- Use visual aids like number lines or counting blocks to understand addition.
- Practice basic facts regularly to build fluency.
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