CBSE Class 8 Mathematics A Square and A Cube MCQs Set B

Question. If a number ends with 2, 3, 7, or 8, it is.
(a) a square
(b) a cube
(c) not a square
(d) a prime

Answer: C

Question. 10 squared is 100, then 100 squared will be.
(a) 1000
(b) 10000
(c) 200
(d) 100000

Answer: B

Question. What was the ancient Indian Sanskrit word for "root of a plant" that was also used for mathematical operations of taking roots?
(a) Jidhr
(b) Varga
(c) Ghana
(d) Mula

Answer: D

Question. Squares can only have this many zeros at the end.
(a) odd number
(b) even number
(c) three
(d) five

Answer: B

Question. If a number has 1 or 9 in the units place, its square ends in.
(a) 9
(b) 1
(c) 0
(d) 2

Answer: B

Question. Square numbers ending in 6 will have 4 or 6 in the.
(a) tens place
(b) units place
(c) total
(d) root

Answer: B

Question. Sum of two consecutive triangular numbers is a.
(a) cube
(b) square number
(c) odd number
(d) zero

Answer: B

Question. The cube of a number
(a) is always positive
(b) is always negative
(c) may be positive or negative
(d) can never be zero

Answer: C

Question. If 35 squared is 1225, then 36 squared is 1225 plus.
(a) 36
(b) 71
(c) 35
(d) 1

Answer: B

Question. The maximum number of digits in the cube root of a six-digit number is
(a) 1
(b) 2
(c) 3
(d) 6

Answer: B

Question. To check if 38 is a square, we subtract.
(a) even numbers
(b) prime numbers
(c) successive odd numbers
(d) tens

Answer: C

Question. 3 and 6 are triangular numbers, their sum is.
(a) 8
(b) 9
(c) 10
(d) 12

Answer: B

Question. If area of a square is 49, its side is.
(a) 6
(b) 7
(c) 8
(d) 49

Answer: B

Question. The numbers 16 and 36 are squares, but 26 is.
(a) also a square
(b) not a square
(c) a perfect cube
(d) a triangular number

Answer: B

Question. Which term was used in ancient Sanskrit works for the square power?
(a) Mula
(b) Pada
(c) Varga
(d) Ghana

Answer: C

Question. Every perfect square has how many integer square roots?
(a) 1
(b) 2
(c) 3
(d) 0

Answer: B

Question. Adding consecutive odd numbers starting from 1 gives.
(a) prime numbers
(b) square numbers
(c) cubes
(d) zero

Answer: B

Question. 1 + 3 + 5 + 7 + 9 is equal to.
(a) 5
(b) 10
(c) 25
(d) 50

Answer: C

Question. If we don't get 0 after subtracting odd numbers, the number is.
(a) a square
(b) not a perfect square
(c) a prime
(d) very small

Answer: B

Question. The smallest natural number by which 32 must be multiplied to get a perfect cube is
(a) 16
(b) 4
(c) 2
(d) 8

Answer: C