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Computation Operations Test - 2

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Computation Operations Test - 2
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  • Question 1
    1 / -0
    How many times should number 4 be added to 8 to get 36?
    Solution
    To get 36, we need to add 4 seven times to 8.
    That is, 8 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 36.
  • Question 2
    1 / -0
    If + = 4210 and + + = 6210, then what is the value of - ?
    Solution




    Subtracting first equation from the second, we get:
    Value of = 2000

    = 4210 - 2000 = 2210

    - = 2210 - 2000 = 210
  • Question 3
    1 / -0
    Division is the process of repeated ___________.
    Solution
    Division is the process of repeated subtraction.
    For Example: = 5.
    This means that we need to subtract 10 from 50 five times.
    That is:
    50 - 10 - 10 - 10 - 10 - 10 = 0
  • Question 4
    1 / -0
    Find the digit which will come in place of in the given subtraction.

    Solution
    5 is the missing digit.
    We need zero after subtraction, so 5 - 5 = 0.

  • Question 5
    1 / -0
    What is the missing number in the box?

    Solution
    (25 + 5) ÷ ? = 5
    30 ÷ ? = 5
    ? = 30 ÷ 5 = 6
    So, option 4 is correct.
  • Question 6
    1 / -0
    What number should be subtracted from 100000 to get the greatest five-digit number?
    Solution
    If 1 is subtracted from 100000, we will get 99999 as the result. That is the greatest five-digit number.

  • Question 7
    1 / -0
    How many 10000's, 1000's, 100's, 10's and 1's, respectively, should be added to get the smallest five-digit number?
    Solution
    10000 is the smallest five-digit number.


  • Question 8
    1 / -0
    Look at the number sentence given below:



    Which number will make the above number sentence true?
    Solution
    58 - ? = 22

    ? = 58 - 22

    ? = 36
  • Question 9
    1 / -0
    Which sign in the box will make the given number sentence true?


    Solution
    ÷ will make the given number sentence true.

    45 ÷ 9 = 5
  • Question 10
    1 / -0
    Max has 5 boxes of cupcakes. He has 30 cupcakes in all. Max uses the number sentence below to find out the number of cupcakes in each box. It is given that each box contains the same number of cupcakes.



    What is the missing number that will makes Max's number sentence true?
    Solution
    It can be said that in each box, there are 6 cupcakes.
    That can be found out by using inverse operation, that is, 30 ÷ 5 = 6.
    So, the missing number is 6 that will make the sentence true.
    5 x 6 = 30
  • Question 11
    1 / -0
    The sum of 44 hundreds and is 6856. What is the missing number in the box?
    Solution
    To find out the missing number in the box, an inverse operation can be used.
    6856 - 4400 = 2456
    4400 + 2456 (box value) = 6856
    So, the missing number in the box is 2456.

  • Question 12
    1 / -0
    Ms. Neha wrote a problem as shown in the box below:



    Which number sentence is correct for the above problem?
    Solution
    Imo and his 3 brothers make up total 4 of them. Each person has 6 candies. So, the true number sentence will be:

    6 x 4 = 24
  • Question 13
    1 / -0
    It is given that 1 + = . If is a prime number and is also a prime number, then what could these two numbers be?
    Solution
    = 2
    If we add 2 to 1, we will get 3, which is also a prime number.

    = 2, = 3
  • Question 14
    1 / -0
    Max wants to buy cupcakes for his 28 friends.
    • He wants to give 2 cupcakes to each friend.
    • Cupcakes come in packs of 4.
    Which among the following can be used to find out the number of packs of cupcakes Max needs?
    Solution
    Number of cupcakes required = 28 x 2 = 56
    According to the question, cupcakes come in packs of 4.
    Number of packs of cupcakes needed = 56 ÷ 4 = 14
  • Question 15
    1 / -0
    If each of the boxes below contains 5 mangoes, then how many mangoes do we have altogether?


    Solution
    Number of mangoes in 1 box = 5
    Number of boxes = 4
    Number of mangoes in all the boxes together = 5 x 4 = 20
  • Question 16
    1 / -0
    How many balls in total are there if each box contains 6 balls.




    Solution
    Each box contains 6 balls and there are 7 boxes in total.
    So, total number of balls = 6 x 7 = 42
  • Question 17
    1 / -0
    What number will come inside the box if the remainder is equal to 1?

    Solution

    We can see that if we divide 245 by 4, then the remainder would be 1.
  • Question 18
    1 / -0
    If the value of $ is 6 times the value of @, then find the value of @ if 432 + $ = 564.
    Solution
    $ = 6 @
    Now, it is given that 432 + $ = 564
    432 + 6 @ = 564
    6 @ = 132
    @ = 22
  • Question 19
    1 / -0
    Which number sentence correctly gives the total number of balloons in following images?


    Solution
    There are 5 balloons in each box and there are 3 boxes in total.
    So, total number of balloons = 5 x 3 = 15.
  • Question 20
    1 / -0
    If it is given that & + 345 = 540 and 324 - $ = 300, then find the sum of & and $.
    Solution
    It is given that & + 345 = 540.
    So, & = 195.
    Similarly, 324 - $ = 300.
    $ = 24
    So, $ + & = 195 + 24 = 219.
  • Question 21
    1 / -0
    If there are 1557 flowers in a pot and all of them are tied in groups of three, then find the number of groups in total.
    Solution
    Total flowers = 1557
    There are 3 flowers in each group, so we will divide 1557 by 3. Upon dividing, we get 519.
    1557 ÷ 3 = 519
  • Question 22
    1 / -0
    Rajeev puts 7 candies in each box. How many candies are there in total?

    Solution
    There are 4 boxes in total and each box has 7 candies, so there are 7 x 4 = 28 candies.
  • Question 23
    1 / -0
    Kamiya has 634 pens in her cupboard. She also has 27 pens in her pen stand. How many pens does she have in total?
    Solution
    Number of pens in cupboard = 634

    Number of pens in pen stand = 27

    Total number of pens = 634 + 27 = 661
  • Question 24
    1 / -0
    Anil has 242 erasers and 156 sharpeners. How many more erasers does he have than sharpeners?

    Solution
    Number of erasers = 242
    Number of sharpeners = 156
    Difference = 242 - 156 = 86
    So, there are 86 more erasers than sharpeners.
  • Question 25
    1 / -0
    There are some boys standing in rows for morning assembly. If the number of boys in each row is the same as the number of rows, then which of the following options gives the total number of boys?
    Solution
    Since the numbers of boys and rows are the same, so there is only one possible option, i.e. 8 x 8.
  • Question 26
    1 / -0
    The value of A is twice the value of B. If the value of A + B is 18, then find the value of A - B.
    Solution
    It is given that A = 2B.
    Also, A + B = 18.
    2B + B = 18 (Using A = 2B)
    3B = 18
    B = 18 ÷ 3 = 6
    A = 2B = 2 x 6 = 12

    Thus, A - B = 12 - 6 = 6
  • Question 27
    1 / -0
    Find the missing number in the box.


    Solution
    ? + 23 x 4 - 16 ÷ 4 = 424
    ? + 92 - 4 = 424
    ? + 88 = 424
    ? = 336
  • Question 28
    1 / -0
    Find the values of A and B.

    Solution
    We know that 4 - 2 = 2, so the value of B is 2.
    Also, 6 - 4 = 2, so the value of A is 6.
  • Question 29
    1 / -0
    Find out the INCORRECT statement from the following:
    Solution
    15 x 6 = 90, so there will be 90 flowers in 15 boxes.
  • Question 30
    1 / -0
    Find the four-digit number:


    Solution
    If we subtract 234 from 545, it gives 311. Now, its tens digit is 1. So, the hundreds digit of the required number is 1.
    If we add 343 to 256, it gives 599. Now, its hundreds digit is 5. So, the thousands digit of the required number is 5.
    The largest one-digit even number is 8. So, the tens digit of the required number is 8.
    The only option that satisfies all the conditions is 5183.
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