Rational Numbers Quiz: Math Exam!
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Integers are denoted by "Z"
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True
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False
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Rational Numbers Quiz: Math Exam! tests understanding of basic rational number operations and properties. It covers calculations, order comparison, and identification of equivalent numbers, enhancing foundational math skills.
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- 2.
The equivalent rational number for -12/30 with denominator 5.
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2/5
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-2/5
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3/5
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-3/5
Correct Answer
A. -2/5Explanation
The given rational number is -12/30. To find the equivalent rational number with denominator 5, we need to simplify the fraction. By dividing both the numerator and denominator by their greatest common divisor (which is 6), we get -2/5. Therefore, the correct answer is -2/5.Rate this question:
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- 3.
0.45÷5=
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0.9
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9
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90
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0.09
Correct Answer
A. 0.09Explanation
When dividing 0.45 by 5, we can think of it as finding how many times 5 fits into 0.45. Since 5 does not fit evenly into 0.45, we need to use decimals. We start by placing a decimal point in the quotient. Then, we divide 5 into 45, which gives us 9. Finally, we place the decimal point in the quotient to get 0.09. Therefore, the correct answer is 0.09.Rate this question:
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- 4.
The equivalent rational number of -3/5.
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9/15
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-15/10
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-6/15
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-9/15
Correct Answer
A. -9/15Explanation
The equivalent rational number of -3/5 is -9/15 because when we multiply the numerator and denominator of -3/5 by the same number (in this case, 3), we get -9/15. This is because multiplying both the numerator and denominator by the same number does not change the value of the fraction. Therefore, -9/15 is the equivalent rational number of -3/5.Rate this question:
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- 5.
Every Integer is a Rational number.
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True
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False
Correct Answer
A. TrueExplanation
Every integer is a rational number because a rational number can be expressed as the ratio of two integers. Since every integer can be written as the ratio of itself and 1, it is considered a rational number.Rate this question:
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- 6.
The increasing order of -3,-2,-5,0.
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-5,-3,-2,0
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0,-2,-3,-5
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-2,-3,-5,0
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-2,-3,-5,0
Correct Answer
A. -5,-3,-2,0Explanation
The correct answer is -5,-3,-2,0. This is the increasing order of the given numbers. Starting from the smallest number, which is -5, the numbers are arranged in ascending order, with each subsequent number being greater than the previous one. The final number in the sequence is 0, which is the largest number among the given numbers.Rate this question:
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- 7.
5/6,1/6,7/6 are equivalent rational numbers.
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True
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False
Correct Answer
A. FalseExplanation
The given statement is false. 5/6, 1/6, and 7/6 are not equivalent rational numbers. Equivalent rational numbers have the same value or can be simplified to the same fraction. In this case, 5/6 and 1/6 have different values and cannot be simplified to the same fraction. Additionally, 7/6 is an improper fraction and cannot be equivalent to either 5/6 or 1/6. Therefore, the correct answer is false.Rate this question:
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- 8.
Rational numbers are denoted by "R".
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True
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False
Correct Answer
A. FalseExplanation
The statement "Rational numbers are denoted by 'R'" is false. Rational numbers are actually denoted by the letter "Q". The letter "R" is used to represent the set of real numbers, which includes both rational and irrational numbers.Rate this question:
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- 9.
The average of 4.5,2.7,3.3.
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4.5
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3.5
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5.5
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None
Correct Answer
A. 3.5Explanation
The correct answer is 3.5 because to find the average, you need to add up all the numbers and then divide by the total number of values. In this case, the sum of 4.5, 2.7, and 3.3 is 10.5. Dividing 10.5 by 3 (the total number of values) gives us an average of 3.5.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Sep 21, 2020Quiz Created by
Naveen24t
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