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English 24 Public

Finding absolute value, determining opposites, and classifying numbers in the rational number system.

Study Slideshow

#opposites #Rational Numbers #absolute value

Identify the error: The absolute value of -4 is -4 because -4 is 4 units to the left of zero.

Error: "absolute value of -4 is -4 ". The correct answer is the absolute value of -4 is 4.

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Identify the error: The definition of absolute value is - how far a number is from its opposite.

Error: "its opposite." The correct answer is: Absolute value is how far a number is from zero.

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Identify the error: To find the absolute value of a number, you change the sign.

Error: "change the sign". The correct answer is to find the absolute value of a number, count how far it is from zero.

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Identify the error: The absolute value of 5 is -5 because -5 is the opposite of 5.

Error: Absolute value is not the same as finding the opposite. The correct answer is the absolute value of -5 is 5 because it is 5 units from zero.

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Use the picture to answer.

Error: They are not the same. The correct answer is the first value is the opposite of the absolute value of 3 and then the absolute value of -3 is 3.

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Identify the error: The absolute value of -15 is -15 because -15 is 15 units to the left of zero.

Error: "The absolute value of -15 is -15. The correct answer is the absolute value of -15 is 15.

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Identify the error: To find the absolute value of a number, re-write the number as the opposite of itself.

Error: Absolute value is not the opposite of the number. The correct answer is to find the absolute value of a number, count how far it is from zero.

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Identify the error: The absolute value of a number can be negative.

Error: Absolute value cannot be negative. Absolute value is always positive.

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A scuba diver was at a depth of − 110 feet. What is the absolute value of the scuba diver?

110

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What is the absolute value of -203?

203

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What is the absolute value of 66?

66

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What is the absolute value of -21?

21

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What is the opposite of 32?

-32

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What is the opposite of -17?

17

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What is the opposite of 49. 28?

-49.28

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What is the opposite of -2/9?

2/9

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