5.2 Number Structure flashcards

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Last updated 9:54 PM on 6/12/26
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11 Terms

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Factors

Numbers you can multiply together to get another number.

<p>Numbers you can multiply together to get another number.</p>
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What are the factors of 12?

1, 2, 3, 4, 6, and 12 because they all multiply in pairs to make 12.

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Factor tree

A diagram that helps you break down a bigger number into its smaller prime-number parts.

<p>A diagram that helps you break down a bigger number into its smaller prime-number parts.</p>
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Prime factorization

The process for breaking a number down into its parts.

<p>The process for breaking a number down into its parts.</p>
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Prime

A number that can only be divided evenly by 1 and itself.

<p>A number that can only be divided evenly by 1 and itself.</p>
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Examples of Prime Numbers

2, 3, 5, 7, 11, 13...

<p>2, 3, 5, 7, 11, 13...</p>
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Composite

A number that has more than two factors—it can be made by multiplying smaller numbers.

<p>A number that has more than two factors—it can be made by multiplying smaller numbers.</p>
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Example of Composite Number

6 is composite because 2 × 3 = 6.

<p>6 is composite because 2 × 3 = 6.</p>
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How is the number '1' special?

The number 1 is not prime and not composite. It's called a 'unit.'

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What is the Order of Operations?

PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)

<p>PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)</p>
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How do you find a Pattern rule?

1.Look at the first few numbers

2. Ask: Is the pattern going up, down

3. Try your rule on the next number