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Questions and Answers
What is the primary goal of the 'making ten' strategy in single-digit addition?
What is the primary goal of the 'making ten' strategy in single-digit addition?
- To find the difference between the two numbers
- To multiply the two numbers together
- To count on from the first number
- To make a ten by adding the two numbers and then adding the remaining amount (correct)
What type of addition fact is the equation 1 + 1 = 2?
What type of addition fact is the equation 1 + 1 = 2?
- Doubles fact (correct)
- Making ten fact
- Near doubles fact
- Counting on fact
Which single-digit addition strategy involves using physical or visual blocks to represent the numbers?
Which single-digit addition strategy involves using physical or visual blocks to represent the numbers?
- Making ten
- Mental math
- Counting blocks (correct)
- Number lines
What is an example of a real-world application of single-digit addition?
What is an example of a real-world application of single-digit addition?
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What is the purpose of counting on in single-digit addition?
What is the purpose of counting on in single-digit addition?
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What type of addition fact is the equation 1 + 2 = 3?
What type of addition fact is the equation 1 + 2 = 3?
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Study Notes
Single-Digit Addition
Definition
- Single-digit addition involves adding two single-digit numbers (0-9) together.
Key Concepts
- Counting on: A strategy where one starts with the first number and counts on the second number to find the total.
- Making ten: A strategy where one tries to make a ten by adding the two numbers, and then adding the remaining amount.
Basic Addition Facts
- Counting on facts:
- 0 + 0 = 0
- 0 + 1 = 1
- 0 + 2 = 2 ...
- 1 + 0 = 1
- 1 + 1 = 2 ...
- Doubles facts:
- 0 + 0 = 0
- 1 + 1 = 2
- 2 + 2 = 4 ...
- Near doubles facts:
- 1 + 2 = 3
- 2 + 3 = 5
- 3 + 4 = 7 ...
Strategies for Single-Digit Addition
- Counting blocks: Using physical or visual blocks to represent the numbers and counting on to find the total.
- Number lines: Using a number line to visualize the numbers and count on to find the total.
- Mental math: Using mental calculations to add the numbers together.
Real-World Applications
- Counting objects together (e.g., toys, blocks, etc.)
- Measuring quantities (e.g., measuring ingredients for a recipe)
- Solving everyday problems (e.g., combining scores in a game)
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