CBSE Class 6 Mathematics Number Play MCQs Set J

Question. What is the smallest two-digit number?
(a) 10
(b) 11
(c) 12
(d) 9

Answer: A

Question. Smallest number from digits of 6382 is called.
(a) Number A
(b) Number B
(c) Number C
(d) Number D

Answer: B

Question. Which of the following sequences is palindromic?
(a) 123321
(b) 123421
(c) 112233
(d) 321123

Answer: A

Question. German mathematician who gave this conjecture was.
(a) Kaprekar
(b) Lothar Collatz
(c) Ramanujan
(d) Dinesh

Answer: B

Question. What is the smallest’4-digit number?
(a) 1000
(b) 1001
(c) 1100
(d) 1010

Answer: A

Question. Largest number from digits of 6382 is called.
(a) Number A
(b) Number B
(c) Number C
(d) Number D

Answer: A

Question. Which of the following numbers lies between 5000 and 6000?
(a) 4500
(b) 5250
(c) 6750
(d) 7000

Answer: B

Question. For a group of 5 children, the sequence 1, 1, 1, 1, 1 is.
(a) Possible
(b) Not possible
(c) Very easy
(d) Correct

Answer: B

Question. What is the correct step in Collatz rule if the number is odd?
(a) Divide by 2
(b) Multiply by 3 and add 1
(c) Add 5
(d) Subtract 1

Answer: B

Question. A cell is colored in a table if the number is larger than.
(a) 100
(b) Adjacent cells
(c) Small numbers
(d) All numbers

Answer: B

Question. By using dot (.) patterns, which of the following numbers can be arranged in all the three ways namely a line, a triangle and a rectangle?)
(a) 9
(b) 10
(c) 11
(d) 12

Answer: B

Question. In Collatz rule, if number is even we take.
(a) Double
(b) Half
(c) Triple
(d) Zero

Answer: B

Question. The Kaprekar constant for four-digit numbers is:
(a) 1234
(b) 6174
(c) 3412
(d) 9472

Answer: B

Question. 121, 313 and 222 are examples of.
(a) Supercells
(b) Palindromes
(c) Even numbers
(d) Magic numbers

Answer: B

Question. Estimate the number of breaths a person takes in a day.
(a) 1000–2000
(b) 5000–7000
(c) 15000–25000
(d) 30000–50000

Answer: D

Question. 4-digit number plus 2-digit number gives 6-digit sum is.
(a) Always true
(b) Never true
(c) Sometimes true
(d) Correct

Answer: B

Question. If you subtract the smallest prime number from 15, What is the result? Competency Based Question
(a) 12
(b) 13
(c) 14
(d) 10

Answer: B

Question. Collatz sequence always reaches.
(a) 0
(b) 1
(c) 100
(d) Infinity

Answer: B

Question. What is the estimated sum of 645 + 876?
(a) 1300
(b) 1400
(c) 1500
(d) 1600

Answer: C

Question. Numbers reading same from left to right and right to left are called.
(a) Digits
(b) Palindromes
(c) Constants
(d) Patterns

Answer: B