7th Grade Decimals Quiz! Math Questions! Trivia

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7th Grade Decimals Quiz! Math Questions! Trivia - Quiz

Are you looking for some 7th grade decimals quiz math questions! There are a lot of people who get confuses when it comes to changing decimal numbers to words and verse versa and if you are one of the people who need help in this, worry not as the quiz below is exactly what you need. Do give it a shot and see if you can get all the questions correct!.


Questions and Answers
  • 1. 

    Thirty five and four-tenths

    • A.

      3.54

    • B.

      35.40

    • C.

      34.04

    • D.

      354

    Correct Answer
    B. 35.40
    Explanation
    The correct answer is 35.40 because it represents the number "thirty five and four-tenths" in decimal form. The number 35.40 has a whole number part of 35 and a decimal part of 0.40, which is equivalent to four-tenths.

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  • 2. 

    Seven hundred thirty-two and one hundred thirty-eight thousandths.

    • A.

      .732138

    • B.

      732.138

    • C.

      7321.3800

    • D.

      732.0138

    Correct Answer
    B. 732.138
    Explanation
    The given number, 732.138, is correctly represented in decimal form. The digits before the decimal point represent the whole number part, which is 732. The digits after the decimal point represent the fraction part, which is 138 thousandths. Therefore, the correct answer is 732.138.

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  • 3. 

    Two and eighty-eight hundredths.

    • A.

      2.088

    • B.

      2.08

    • C.

      2.808

    • D.

      2.88

    Correct Answer
    D. 2.88
    Explanation
    The correct answer is 2.88 because it is the only option that matches the given value "Two and eighty-eight hundredths." The number 2.88 represents "Two" whole units and "eighty-eight hundredths" which is equivalent to 0.88. Therefore, 2.88 is the correct representation of the given value.

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  • 4. 

    Seventy-eight and four hundred fifty-seven thousandths.

    • A.

      784.57

    • B.

      78.475

    • C.

      78.457

    • D.

      784.57

    Correct Answer
    C. 78.457
    Explanation
    The given number is "Seventy-eight and four hundred fifty-seven thousandths." This can be written in decimal form as 78.457.

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  • 5. 

    Six hundred fifteen thousand and forty-two hundredths.

    • A.

      615000.42

    • B.

      600015.42

    • C.

      615.42

    • D.

      615000.042

    Correct Answer
    A. 615000.42
    Explanation
    The given number is "Six hundred fifteen thousand and forty-two hundredths." This can be written as 615000.42.

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  • 6. 

    Thirty-nine and one hundred four thousandths.

    • A.

      39.19

    • B.

      39.104

    • C.

      391.04

    • D.

      39.094

    Correct Answer
    B. 39.104
    Explanation
    The correct answer is 39.104 because it is the only option that matches the given number "Thirty-nine and one hundred four thousandths." The number 39.19 is incorrect because it does not include the "one hundred four thousandths" part. The numbers 391.04 and 39.094 are also incorrect because they do not match the given number exactly. Therefore, the only option that matches the given number is 39.104.

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  • 7. 

    0.007 =

    • A.

      .07

    • B.

      0.00007%

    • C.

      0.7%

    • D.

      7

    Correct Answer
    C. 0.7%
    Explanation
    The correct answer is 0.7%. This is because 0.007 can be converted to a percentage by moving the decimal point two places to the right, resulting in 0.7%.

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  • 8. 

    34.5 =

    • A.

      3.45%

    • B.

      0.345%

    • C.

      345%

    • D.

      3450%

    Correct Answer
    D. 3450%
    Explanation
    The given answer, 3450%, is correct because it represents the decimal number 34.5 as a percentage. To convert a decimal to a percentage, we move the decimal point two places to the right and add a percentage sign. Therefore, 34.5 becomes 3450%.

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  • 9. 

    20% =

    • A.

      2000

    • B.

      .2

    • C.

      2

    • D.

      0.020

    Correct Answer
    B. .2
    Explanation
    The given options represent different ways of expressing 20% as a decimal. The correct answer is .2, which is the decimal form of 20%.

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  • 10. 

    3 =

    • A.

      0.3%

    • B.

      300%

    • C.

      3%

    • D.

      30%

    Correct Answer
    B. 300%
    Explanation
    When we see a number without any decimal point or percentage sign, it is usually interpreted as a whole number or as a percentage. In this case, the number 3 can be interpreted as 3% because it is a small number. However, the given answer is 300%, which is a much larger percentage. This suggests that the number 3 is being interpreted as a whole number instead of a percentage. Therefore, the correct interpretation is that 3 is equal to 300%.

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  • 11. 

    0.6 =

    • A.

      .006

    • B.

      60%

    • C.

      6

    • D.

      0.06

    Correct Answer
    B. 60%
    Explanation
    The given correct answer is 60%. This is because 0.6 can be expressed as a percentage by multiplying it by 100. Therefore, 0.6 multiplied by 100 equals 60%.

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  • 12. 

    37.4% =

    • A.

      .374

    • B.

      3470

    • C.

      .347

    • D.

      0.374%

    Correct Answer
    A. .374
    Explanation
    The given answer, .374, is the decimal representation of 37.4%. To convert a percentage to a decimal, we divide it by 100. In this case, dividing 37.4 by 100 gives us 0.374. Therefore, the correct answer is .374.

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  • 13. 

    700% =

    • A.

      0.7

    • B.

      7000

    • C.

      7

    • D.

      70

    Correct Answer
    C. 7
  • 14. 

    4% =

    • A.

      0.04

    • B.

      400

    • C.

      .004

    • D.

      4

    Correct Answer
    A. 0.04
    Explanation
    The correct answer is 0.04 because 4% is equivalent to 0.04 in decimal form. To convert a percentage to a decimal, you divide it by 100. In this case, dividing 4 by 100 gives you 0.04.

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  • 15. 

    8290% =

    • A.

      82900

    • B.

      82.9

    • C.

      82.9%

    • D.

      8.29

    Correct Answer
    B. 82.9
    Explanation
    The correct answer is 82.9 because to convert a percentage to a decimal, you divide the percentage by 100. In this case, 8290 divided by 100 equals 82.9.

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  • 16. 

    Three hundred forty-eight and ten thousandths.

    • A.

      348.100

    • B.

      348.010

    • C.

      348000.10

    • D.

      340.810

    Correct Answer
    B. 348.010
    Explanation
    The given number, "Three hundred forty-eight and ten thousandths," can be written as 348.010. This is because the number has three hundred forty-eight as the whole number part and ten thousandths as the decimal part. Therefore, the correct answer is 348.010.

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  • 17. 

    Four and sixteen thousandths.

    • A.

      4016

    • B.

      4.160

    • C.

      4.016

    • D.

      4.16

    Correct Answer
    C. 4.016
    Explanation
    The correct answer is 4.016 because it is the only option that matches the given number, "Four and sixteen thousandths." The number "Four" is represented by the digit 4, and "sixteen thousandths" is represented by the digits 0, 1, and 6 in the decimal part of the number. Therefore, 4.016 is the correct representation of "Four and sixteen thousandths."

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  • 18. 

    Ten thousand and five-tenths.

    • A.

      10005.0

    • B.

      10000.05

    • C.

      10000.005

    • D.

      10000.5

    Correct Answer
    D. 10000.5
    Explanation
    The given number, "Ten thousand and five-tenths," can be written as 10,000.5. This is because "ten thousand" represents the whole number 10,000, and "five-tenths" represents the decimal 0.5. Therefore, the correct answer is 10000.5.

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  • 19. 

    Eight hundred eight and sixty-four thousand

    • A.

      808.640

    • B.

      800640

    • C.

      .808640

    • D.

      808.064

    Correct Answer
    D. 808.064
    Explanation
    The correct answer is 808.064 because it accurately represents "Eight hundred eight and sixty-four thousand" in numerical form. The decimal point is placed after the digit 8 to indicate the separation between the whole number and the decimal fraction. The digits 0, 6, and 4 after the decimal point represent the thousands, hundreds, and tens places respectively.

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  • 20. 

    65.3 ÷ 100 =

    • A.

      .653

    • B.

      653%

    • C.

      65300

    • D.

      6.53%

    Correct Answer
    A. .653
    Explanation
    To divide 65.3 by 100, you simply move the decimal point two places to the left. This is because when you divide by 100, you are essentially dividing by 10 twice, which means you need to decrease the value by two decimal places. 

    So, starting with 65.3, you move the decimal point two places to the left to get 0.653. This is the result of dividing 65.3 by 100.

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