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CTET Negative Number — practice questions — page 3

Explore 80 free Negative Number questions in CTET Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Negative Number questions and exercises with answers

Showing questions 61–80 of 80.

The integers are not closed under which operation?Read the answer and worked solution →Adding any two integers always yields what?Read the answer and worked solution →Why are the integers not closed under exponentiation?Read the answer and worked solution →What does it mean that the integers are countably infinite?Read the answer and worked solution →Which kind of integer storage can hold any integer that fits in memory?Read the answer and worked solution →Why can a computer integer type hold only some integers?Read the answer and worked solution →What point on a number line represents the number zero?Read the answer and worked solution →What does an open interval on a number line do?Read the answer and worked solution →Which interval on a number line includes both of its end numbers?Read the answer and worked solution →A half-open interval includes how many of its end numbers?Read the answer and worked solution →All points going forever in one direction from a point form what?Read the answer and worked solution →What does the arrow on a number line usually show?Read the answer and worked solution →On a number line, the length from 0 to a number gives its what?Read the answer and worked solution →A number line is first used in school to teach what?Read the answer and worked solution →In advanced maths, the number line is usually called what?Read the answer and worked solution →A nonnegative number is one that is what?Read the answer and worked solution →Which numbers are described as nonpositive?Read the answer and worked solution →The minus sign is used for which two operations?Read the answer and worked solution →Which sign can be placed before a number to stress it is positive?Read the answer and worked solution →A football team conceding more goals than it scores has what goal difference?Read the answer and worked solution →

Worked practice questions

The integers are not closed under which operation?

  1. Addition
  2. Division
  3. Subtraction
  4. Multiplication
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Correct answer: B. Division

1. Closed means the result stays an integer. 2. 1 divided by 2 is not an integer, so division fails. 3. Addition, subtraction and multiplication always give integers. _Source: Wikipedia, Integer, Algebraic properties_

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Adding any two integers always yields what?

  1. A fraction
  2. A prime number
  3. An integer
  4. A natural number
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Correct answer: C. An integer

1. The integers are closed under addition. 2. So adding two integers gives another integer, such as -4 + 9 = 5. 3. The sum can be negative, so it is not always natural, prime or a fraction. _Source: Wikipedia, Integer, Algebraic properties_

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Why are the integers not closed under exponentiation?

  1. Zero cannot be raised to a power
  2. A negative exponent can give a fraction
  3. The answer is always negative
  4. Powers are always natural numbers
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Correct answer: B. A negative exponent can give a fraction

1. Closed would mean a power of an integer stays an integer. 2. A negative exponent gives a fraction, for example 2 to the power -1 is 1/2. 3. The other statements are not true. _Source: Wikipedia, Integer, Algebraic properties_

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