1-1 & 1-2: Rational & Irrational Numbers (11/19/24)

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What is a rational number?

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CCSS.5.NBT.A.2

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What is an irrational number?

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An irrational number is a number that cannot be expressed as a simple fraction. It cannot be written as a ratio of two integers.

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CCSS.8.NS.A.1

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CCSS.8.NS.A.1

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CCSS.8.NS.A.2

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CCSS.8.NS.A.2

Front

How can you express the repeating decimal 0.141414... as a fraction?

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What type of number is a decimal that terminates? Example: 2.75

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A decimal that terminates is a rational number.

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

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CCSS.8.NS.A.2

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CCSS.8.NS.A.2

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Is the number 0.333... rational or irrational?

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1