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Computation Operations Test - 3

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Computation Operations Test - 3
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Weekly Quiz Competition
  • Question 1
    1 / -0
    How many times should number 9 be subtracted from 90 to get 0?
    Solution
    According to question:
    90 - 9 = 81 (1 time)
    81 - 9 = 72 (2 times)
    72 - 9 = 63 (3 times)
    63 - 9 = 54 (4 times)
    54 - 9 = 45 (5 times)
    45 - 9 = 36 (6 times)
    36 - 9 = 27 (7 times)
    27 - 9 = 18 (8 times)
    18 - 9 = 9 (9 times)
    9 - 9 = 0 (0 times)
    Hence, the answer is 10.
  • Question 2
    1 / -0

    If = 5667, and = 7743, then what is the value of
    ?
    Solution


    = 3591 - 2076 = 1515
  • Question 3
    1 / -0
    Division is the inverse of
    Solution
    The four main mathematical operations are addition, subtraction, multiplication and division.
    The inverse of addition is subtraction and vice versa.
    The inverse of multiplication is division and vice versa.
  • Question 4
    1 / -0
    Find the missing number which will come in the box in the given subtraction.

    Solution
    We see that something on subtracting from 8 gives 9.
    As 8 is less that 9, it means 8 borrows 1 from 7 and after borrowing, something on subtracting from 18 gives 9.
    This means, 18 - ? = 9
    ? = 18 - 9 = 9
    So, 9 will come in the box.
  • Question 5
    1 / -0
    Find the missing number in the box.


    Solution
    (? + 5) ÷ 3 = 7
    This means we need to add something to 5 and then divide by 3 to get the answer 7.
    (? + 5) = 21
    ? = 21 - 5 = 16
    The missing number is 16.
  • Question 6
    1 / -0
    What number should be added to 99,999 to get the smallest 6-digit number?
    Solution
    It is only 1 which can be added to 99,999 to get the smallest 6-digit number.
    99,999 + 1= 1,00,000
    So, the correct answer is option 1.
  • Question 7
    1 / -0
    How many 1000s, 100s, 10s and 1s should be added to get the smallest 4-digit number?
    Solution
    The smallest 4-digit number is 1000.
    According to this, the correct answer is 1000 because 1 thousands, 0 hundreds, 0 tens and 0 ones should be needed to get the smallest 4-digit number.
  • Question 8
    1 / -0
    Look at the number sentence given below:



    Which of the following numbers will make the above sentence true?
    Solution
    The correct answer is 53.
    82 + ? = 135
    ? = 135 - 82 = 53
  • Question 9
    1 / -0
    Which sign in the box will make the given number sentence true?

    7 12 = 84
    Solution
    According to question,

    7 x 12 = 84
  • Question 10
    1 / -0
    Ram has 27 chocolates. He wants to distribute these chocolates to his 3 friends. He makes a number sentence to help him, as given below:

    27 ÷ = 3

    Find the missing number that makes Ram's number sentence true.
    Solution
    27 ÷ ? = 3
    ? = 27 ÷ 3
    ? = 9
  • Question 11
    1 / -0
    The difference between 367 tens and ______ is 1367.

    Which of the following numbers will come in the blank space?
    Solution
    367 tens - ____ = 3670

    3670 - ____ = 1367

    ____ = 3670 - 1367

    ____ = 2303
  • Question 12
    1 / -0
    Mr Ajay wrote a problem on the blackboard as shown in the given box.



    Which of the following number sentences matches the problem?
    Solution
    According to question:
    Total balloons = 45
    If Lilly has 27 balloons, total would be 27 + __ = 45.
  • Question 13
    1 / -0
    It is given that 6 x ☼ = ∞. If ☼ is an odd number and ∞ is an even number, then what could be these two numbers?
    Solution
    According to the question and options, the best suitable answer is 6 x 15 = 90, where 15 is an odd number and 90 is an even number.
  • Question 14
    1 / -0
    Miss Sunita wants to give one pen to each student.

    (i) There are 42 students in her class.
    (ii) The pens come in packs of 7.

    Which of the following can be used to find the number of boxes of pens Miss Sunita needs?
    Solution
    The total number of students is 42 and the pens come in packs of 7.
    Total number of pens needed = 42
    42 ÷ 7 = 6
  • Question 15
    1 / -0

    If 12 bananas are put in each bag, how many bananas would be there altogether?
    Solution
    Number of bananas in each bag = 12
    Number of bags = 6
    Number of bananas altogether = 12 x 6 = 72
  • Question 16
    1 / -0
    If 72 candies are put into the following boxes and if each box has the same number of candies, then how many candies are there in each box?
    Solution
    Total number of candies = 72
    Number of boxes = 4
    Number of candies in each box = 72 ÷ 4 = 18
  • Question 17
    1 / -0
    Find the missing digit in the box, if the remainder is equal to 4.
    Solution


    Therefore, the missing digit is 7.

    Alternative Method:
    Dividend = Quotient x Divisor + Remainder
    123 = 17 x ? + 4
    17 x ? = 123 - 4
    17 x ? = 119
    ? = 119 ÷ 17 = 7
  • Question 18
    1 / -0
    The value of ☻ is three times more than the value of ♣. What is the value of ☻, if 75 + ♣ = 15?
    Solution
    75 + ♣ = 15
    ♣ = 75 -15
    ♣ = 60
    Therefore,
    The value of☻ is three times more than the value of ♣.
    ☻ = 60 x 3 = 180
  • Question 19
    1 / -0

    Which of the following number sentence describes the given number of ♥?
    Solution
    Number of hearts in each box = 9
    Number of boxes = 3
    Total number of hearts = 9 x 3 = 27

  • Question 20
    1 / -0
    If ♦ + 420 = 620 and 750 - ♠ = 450, find the difference between ♠ and ♦.
    Solution
    ♦ + 420 = 620
    ♦ = 620 - 420
    ♦ = 200
    750 - ♠ = 450
    750 - 450 = ♠
    300 = ♠
    Therefore,
    ♠ - ♦ = 300 - 200 = 100
  • Question 21
    1 / -0
    There are 3756 sweets in a bag. If all the sweets are in groups of three, then how many groups would be there?
    Solution
    Number of sweets in the bag = 3756
    The sweets are in groups of 3.
    Therefore, 3756 ÷ 3 = 1252
  • Question 22
    1 / -0
    Garima puts exactly five pins in each box shown below. How many pins has she used in total?
    Solution
    Number of pins in each box = 5
    Number of boxes = 7
    Total number of pins= 5 x 7 = 35
  • Question 23
    1 / -0
    Siya puts 4563 books on the book shelf of a library. Riya comes and adds 38 books more. How many books are there altogether?


    Solution
    Number of books on the book shelf of the library = 4563
    Number of books Riya added = 38
    Total number of books = 4563 + 38 = 4601

  • Question 24
    1 / -0
    Riya has 2456 chocolates and Tanvi has 2365 chocolates. How many more chocolates does Riya have than Tanvi?
    Solution
    Number of chocolates Riya has = 2456
    Number of chocolates Tanvi has = 2365
    Number of more chocolates Riya have than Tanvi = 2456 - 2365 = 91
  • Question 25
    1 / -0
    If in a class, the number of rows of benches is the same as the number of columns of benches, then what can be the total number of benches in the class?
    Solution
    Since the number of rows and the number of columns are equal, the best suitable option is 6 x 6.
    Number of rows = 6
    Number of columns = 6

  • Question 26
    1 / -0
    The value of ☺ is 9 times the value of ♥. What will be the value of ☺ - 4, if ♥ + 64 = 123?
    Solution
    ♥ + 64 = 123
    ♥ = 123 - 64
    ♥ = 59
    Therefore,
    the value of ☺ is 9 times the value of ♥.
    ☺ = 59 x 9 = 531
    ☺ - 4 = 531 - 4 = 527
  • Question 27
    1 / -0
    Find the missing number in the box.
    Solution
    ? x 5 - 3 + 8 ÷ 2 = 501
    ? x 5 - 3 + 4 = 501
    ? x 5 + 1 = 501
    ? x 5 = 501 - 1
    ? x 5 = 500
    ? = 500 ÷ 5
    ? = 100
  • Question 28
    1 / -0
    Find the value of A + B.

    Solution
    9 2 3 1
    -6 3 4 8
    ______
    2 8 8 3
    ______

    Thus, A + B = 6 + 3 = 9
  • Question 29
    1 / -0
    Which of the following statements is INCORRECT?

    (i) 4 x 6 is equal to 6 x 4.
    (ii) If there are 5 colours in a box, then there would be 75 colours in 15 boxes.
    (iii) If Sonia has 48 gloves, then she has 24 pairs of gloves.
    (iv) 3 - 2 is the same as 2 - 3.
    Solution
    (i) 4 x 6 = 24 is equal to 6 x 4 = 24.
    (ii) If there are 5 colours in a box, then there would be 75 colours in 15 boxes.
    75 ÷ 5 = 15
    (iii) If Sonia has 48 gloves, then she has 24 pairs of gloves.
    48 ÷ 2 = 24
    (iv) '3 - 2 is the same as 2 - 3' - this statement is incorrect.
    3 - 2 = 1
    2 - 3 = -1
  • Question 30
    1 / -0
    Find the 4-digit number.

    (i) It is an odd number
    (ii) The tens digit is the smallest one-digit number.
    (iii) The hundreds digit is the tens digit of 2500 - 563.
    (iv) The thousands digit is the largest one-digit number.
    Solution
    The tens digit is the smallest one-digit number = 1.
    The hundreds digit is the tens digit of 2500 - 563 = 1937 = 3.
    The thousands digit is the largest one-digit number = 9.
    Therefore, the required 4-digit odd number is 9311.

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