Exploring Rational Numbers on a Number Line

This video tutorial covers rational numbers, explaining their definition and how they can be expressed as fractions or decimals. It demonstrates how to compare and order rational numbers using a number line, and provides steps for converting fractions to decimals. The tutorial also includes graphing rational numbers and ordering them from least to greatest.

What is a rational number?

• A number that can be expressed as a quotient of two integers

• A number that cannot be expressed as a fraction

• A number that is always positive

• A number that is always negative

Which of the following is an example of a rational number?

• √2

• π

• e

• 1.5

How do you convert a fraction to a decimal?

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator and the denominator

• Subtract the denominator from the numerator

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the decimal equivalent of the fraction 4/3?

• 1.75

• 1.5

• 1.33

• 1.25

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

On a number line, which is greater: -1.33 or -1.5?

• -1.33

• -1.5

• They are equal

• Cannot be determined

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CCSS.6.NS.C.7A

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Where would -0.25 be placed on a number line?

• To the right of -0.4

• At the same position as -0.4

• To the right of 0.25

• To the left of -0.4

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CCSS.6.NS.C.7A

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How do you convert 1 and 1/5 to a decimal?

• 1.1

• 1.2

• 1.3

• 1.4

Which is greater: 1.6 or 1.25?

• 1.6

• 1.25

• They are equal

• Cannot be determined

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CCSS.4.NF.C.7

What is the decimal equivalent of 5/8?

• 0.875

• 0.5

• 0.625

• 0.75

Order the following from least to greatest: 0.61, 0.5, 0.66

• 0.5, 0.66, 0.61

• 0.66, 0.61, 0.5

• 0.5, 0.61, 0.66

• 0.61, 0.5, 0.66

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CCSS.5.NBT.A.3B