CBSE Class 8 Mathematics Number Play MCQs Set B

Question. Sum of 4, 5, and 6 is 15, so 15 is written as sum of how many consecutive numbers?
(a) 2
(b) 3
(c) 4
(d) 5

Answer: B

Question. If x is an odd number, then x squared will be
(a) even
(b) odd
(c) zero
(d) negative

Answer: B

Question. In Navakankari game, players start with how many pawns?
(a) 5
(b) 9
(c) 3
(d) 12

Answer: B

Question. A number leaves a remainder of 5 when divided by 7 and a remainder of 2 when divided by 9. Which of the following could be?
(a) 39
(b) 47
(c) 53
(d) 61

Answer: B

Question. Multiples of 3 like 15 and 87 are not always multiples of
(a) 1
(b) 3
(c) 9
(d) zero

Answer: C

Question. Value of 5k - 2 when k is 2 will be
(a) 10
(b) 8
(c) 3
(d) 5

Answer: B

Question. To check 11, we add digits of place values 10, 1000, 100000 to find
(a) total short
(b) total excess
(c) units digit
(d) digital root

Answer: A

Question. When 4 consecutive numbers are chosen, and ‘+' or ‘-‘ signs are placed between them, what is always true about the parity of the resulting expressions?
(a) They are always odd.
(b) They alternate between even and odd.
(c) They always have even parity.
(d) Their parity varies randomly.

Answer: C

Question. Multiple of 9 closest to 6000 will be
(a) 6003
(b) 5994
(c) 6001
(d) 5990

Answer: B

Question. In cryptarithms, first digit of a number is never
(a) 1
(b) 9
(c) 0
(d) 5

Answer: C

Question. In number 31z5, if it is a multiple of 9, value of z can be
(a) 0
(b) 9
(c) 1
(d) both a and b

Answer: D

Question. Which of the following numbers is not divisible by 5?
(a) 2025
(b) 300
(c) 42100
(d) 12345678

Answer: D

Question. If difference between excess sum and short sum is a multiple of 11, number is
(a) odd
(b) divisible by 11
(c) prime
(d) not divisible

Answer: B

Question. Sum of four consecutive numbers is 34, what is the smallest number?
(a) 5
(b) 7
(c) 8
(d) 10

Answer: B

Question. Shortcut to check divisibility by 3 is same as shortcut for
(a) 2
(b) 4
(c) 9
(d) 5

Answer: C

Question. If 41Z is a multiple of 11, where Z is a digit then the value of Z is
(a) 4
(b) 8
(c) 6
(d) 2

Answer: B

Question. In Navakankari, line of three pawns can be horizontal or
(a) round
(b) vertical
(c) slanted
(d) zig-zag

Answer: B

Question. If x is an even number, then x squared will be
(a) odd
(b) even
(c) prime
(d) small

Answer: B

Question. In any 4 consecutive numbers, how many different sign possibilities are there?
(a) 4
(b) 6
(c) 8
(d) 10

Answer: C

Question. Which of the following number is divisible by 6?
(a) 297143
(b) 1790184
(c) 291245
(d)180791

Answer: B