Mental Math Quiz - Grade 5

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  • 1/10 Questions

    If the cost of the three tables is 975, then the cost of 1 table is 325.

    • True
    • False
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About This Quiz

This Grade 5 Mental Math Quiz challenges students with problems on basic arithmetic, prime numbers, and simple algebra, enhancing their quick calculation skills.

Mental Math Quiz - Grade 5 - Quiz

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  • 2. 

    174   - 38 = _____

    • 84

    • 144

    • 136

    • 148

    Correct Answer
    A. 136
    Explanation
    The correct answer is 136 because when you subtract 38 from 174, you get 136.

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  • 3. 

     25/38  + 7/38  =  32/68 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The given statement is false because the sum of 25/38 and 7/38 is not equal to 32/68. To add fractions, the denominators must be the same. In this case, the denominators are already the same, so we can add the numerators to get 32/38. However, this fraction cannot be simplified to 32/68, so the answer is false.

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  • 4. 

    6/?  =  36/42. What is ?

    • 9

    • 8

    • 7

    • 6

    Correct Answer
    A. 7
    Explanation
    Let’s solve the equation for ?. The equation is:
    6/?​=36/42​
    We can cross-multiply to solve for ?:
    6∗42=36∗?
    Solving for ? gives:
    ?=366∗42​
    So, ? equals 7.

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  • 5. 

    The greatest two-digits prime number is

    • 11

    • 99

    • 93

    • 97

    Correct Answer
    A. 97
    Explanation
    A prime number is a natural number greater than 1 that has exactly two distinct positive divisors: 1 and itself. The greatest two-digit prime number is 97. The other options are incorrect because they are either not prime numbers or not the greatest two-digit prime number:
    11 is a prime number, but it is not the greatest two-digit prime number.
    99 is not a prime number because it is divisible by 3, 9, 11, and 33.
    93 is not a prime number because it is divisible by 3 and 31.

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  • 6. 

    25680 =

    • 2 +5 +6+8+0

    • 2 ten thousands + fifty six hundreds + eighty

    • 25+ 68+ 0

    • 20000+ 5000+ 600+ 80

    Correct Answer
    A. 20000+ 5000+ 600+ 80
    Explanation
    The given expression represents the number 25680 in expanded form. It breaks down the number into its place values, with 2 ten thousands (20000), fifty six hundreds (5600), and eighty (80). By adding these values together, we get the correct answer of 25680.

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  • 7. 

    3/4 of 100 is ________ Percent.

    Correct Answer
    75
  • 8. 
    160  ÷x = 16. So, what is x?                                      - ProProfs

    160  ÷x = 16. So, what is x?                                     

    • 16

    • 80

    • 40

    • 10

    Correct Answer
    A. 10
    Explanation
    The correct answer is 10. To find the value of x, we need to solve the equation 160 ÷ x = 16. By dividing 160 by 16, we get x = 10.

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  • 9. 

    5h 15 min after 2:45 pm is ________

    Correct Answer
    8 pm, 8pm, 8 p.m. , 8:00 , 8:00 PM , 8:00 pm , 8:00 Pm
    Explanation
    To find the time 5 hours and 15 minutes after 2:45 PM, follow these steps:
    Add 5 hours to 2:45 PM:
    2:45 PM + 5 hours = 7:45 PM
    Add 15 minutes to 7:45 PM:
    7:45 PM + 15 minutes = 8:00 PM
    So, 5 hours and 15 minutes after 2:45 PM is 8:00 PM.

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  • Current Version
  • Nov 24, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 04, 2020
    Quiz Created by
    ROOPA
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