what addition doubles fact can help you find 4+3

Natashya

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22-12-2024

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Knowing your doubles facts can be a super helpful shortcut in math! A doubles fact is an addition problem where both numbers are the same, like 2 + 2 or 5 + 5. This article will show you how knowing a doubles fact can help you quickly solve 4 + 3.

Understanding Doubles Facts

Doubles facts are a fundamental building block in early arithmetic. They're easy to memorize and provide a foundation for solving more complex problems. Here are a few examples:

• 1 + 1 = 2
• 2 + 2 = 4
• 3 + 3 = 6
• 4 + 4 = 8
• 5 + 5 = 10

And so on...

Using Doubles to Solve 4 + 3

The addition problem 4 + 3 might seem straightforward, but we can use a doubles fact to make it even easier. Notice that 4 + 3 is very close to the doubles fact 4 + 4 = 8.

Here's how we can use this:

1. Identify the nearest doubles fact: We see that 4 + 4 = 8 is the closest doubles fact to 4 + 3.

2. Compare: Compare 4 + 3 to 4 + 4. We only need to add one less than the doubles fact to get the answer.

3. Solve: Since 4 + 4 is 8, and 4 + 3 is one less than 4 + 4, then 4 + 3 must be 7.

Visual Representation

Imagine you have four apples, and then you add three more. You almost have a double (four apples and four apples), but you are one apple short. This helps visualize why the answer is 7.

Other Examples

Let's try another example: What about 6 + 5?

1. Nearest doubles fact: 6 + 6 = 12

2. Compare: 6 + 5 is one less than 6 + 6.

3. Solve: Therefore, 6 + 5 = 11.

This strategy works well for addition problems where one addend is one less than the other.

Why This Method is Helpful

Using doubles facts to solve addition problems is a fantastic strategy because:

• It builds on known facts: It leverages already memorized information.
• It improves mental math skills: It encourages quicker calculations without relying on counting fingers or other time-consuming methods.
• It enhances number sense: It promotes a deeper understanding of number relationships.

Mastering doubles facts and using them to solve problems like 4 + 3 is a crucial step in developing strong mathematical skills. It provides a pathway to faster and more efficient calculation. Practice makes perfect, so keep working with these strategies!