CBSE Class 6 Mathematics Number Play MCQs Set B

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Question. Which of these is part of the Kaprekar process?
(a) Multiplying by 2
(b) Subtracting the smallest number from the largest number formed from the digits
(c) Adding the smallest number to the largest number
(d) Dividing the number by 3

Answer: B

Question. What is the digit sum of the number 731?
(a) 11
(b) 9
(c) 10
(d) 12

Answer: D

Question. What is the largest three-digit number?
(a) 100
(b) 999
(c) 1000
(d) 900

Answer: B

Question. Which of the following can be a supercell in a table?
(a) The largest number
(b) A middle number that is greater than its neighbors
(c) The smallest number
(d) Any number placed at the edges

Answer: B

Question. What comes next in the sequence: 21, 64, 32, 16, __?
(a) 4
(b) 8
(c) 32
(d) 64

Answer: B

Question. Which of the following is the correct sum of digits for the number 176?
(a) 12
(b) 14
(c) 16
(d) 17

Answer: B

Question. Which of the following is NOT a palindrome?
(a) 121
(b) 333
(c) 234
(d) 989

Answer: A

Question. What is the largest number that can be formed using the digits 6382?
(a) 8632
(b) 8362
(c) 8623
(d) 8236

Answer: A

Question. Which of these sums to exactly 10,000?
(a) 3500 + 5000 + 200
(b) 3000 + 4500 + 1500
(c) 2500 + 6000 + 1500
(d) 4000 + 4000 + 1000

Answer: B

Question. Which number is a palindrome?
(a) 1234
(b) 3443
(c) 4567
(d) 2134

Answer: B

Question. Which of the following can NEVER be a palindrome?
(a) An odd number
(b) A prime number
(c) A two-digit number with different digits
(d) A number with repeated digits

Answer: C

Question. What is the midpoint of 1000 and 2000 on a number line?
(a) 1250
(b) 1500
(c) 1750
(d) 2500

Answer: B

Question. Estimate how many words are in a small book with about 50 pages.
(a) 500
(b) 5000
(c) 10,000
(d) 50,000

Answer: B

Question. The supercell in the given table is
im-11
(a) 86
(b) 43
(c) 94
(d) 56

Answer: C

Question. What is the Kaprekar constant for a 3-digit number?
(a) 495
(b) 617
(c) 123
(d) 543

Answer: A

Question. The largest 5-digit number having only three different digits is
(a) 98978
(b) 99897
(c) 99987
(d) 98799

Answer: C

Question. What is the sum of the smallest and largest 5-digit palindrome?
(a) 12345
(b) 54321
(c) 66666
(d) 77777

Answer: C

Question. What is the next number in the Collatz sequence starting with 17: 17, 52, __?
(a) 40
(b) 26
(c) 13
(d) 8

Answer: B

Question. The palindrome formed by reversing and adding 68 is:
(a) 144
(b) 1111
(c) 232
(d) 324

Answer: B

Question. What number comes next in the Collatz sequence starting from 13?
(a) 40
(b) 14
(c) 6
(d) 4

Answer: A

Question. Estimate the sum of 3780 and 6300 to the nearest thousand.
(a) 9000
(b) 10,000
(c) 11,000
(d) 12,000

Answer: B

Question. How many supercells are possible in a 3x3 grid with 9 unique numbers?
(a) 1
(b) 3
(c) 2
(d) 4

Answer: C

Question. What is the smallest 5-digit number where all digits are odd?
(a) 11111
(b) 13579
(c) 10001
(d) 11357

Answer: B

Question. A two-digit number that is divisible by both 2 and 5 is:
(a) 10
(b) 15
(c) 20
(d) 25

Answer: C

Question. What is 9000 – 3567?
(a) 5433
(b) 4567
(c) 6433
(d) 7467

Answer: A

Question. In the Collatz Conjecture, if a number is odd, the next step is to:
(a) Divide it by 2
(b) Multiply it by 3 and add 1
(c) Subtract 1
(d) Multiply it by 4

Answer: B

Question. In a table of numbers, the largest number can always be a supercell. True or False?
(a) True
(b) False
(c) none of the options
(d) all of the options

Answer: B

Question. Which of the following numbers is a supercell in the grid [45, 78, 92, 31, 60]?
(a) 45
(b) 78
(c) 92
(d) 60

Answer: C

Question. If a number is larger than all of its neighboring numbers in a table, it is called a:
(a) Supercell
(b) Maximum cell
(c) Palindrome
(d) Prime cell

Answer: A

Question. Which of the following is a palindromic date?
(a) 11/02/2011
(b) 12/12/2013
(c) 13/01/2015
(d) 10/11/2020

Answer: A

Question. Which of the following numbers is both a multiple of 7 and an even number?
(a) 14
(b) 21
(c) 35
(d) 49

Answer: A

Question. In the Collatz sequence, which number comes after 5?
(a) 8
(b) 10
(c) 3
(d) 4

Answer: A

Question. Which of the following sets of numbers adds up to 24,539?
(a) 5-digit number = 21,000, 3-digit number = 539
(b) 5-digit number = 20,000, 3-digit number = 439
(c) 5-digit number = 22,000, 3-digit number = 539
(d) 5-digit number = 19,000, 3-digit number = 539

Answer: B

Question. How many times will the digit ‘7’ appear between 1 and 100?
(a) 9
(b) 10
(c) 11
(d) 20

Answer: B

Question. What’s the next palindromic time after 10:01?
(a) 10:10
(b) 11:11
(c) 12:21
(d) 10:11

Answer: D

Question. What is the result of 1234 + 5678?
(a) 6802
(b) 6912
(c) 6902
(d) 6801

Answer: C