CBSE Class 8 Mathematics Playing With Numbers Worksheet Set B

Question. Which of these would be equal to the number itself?
(a) 50% of 50% of a number
(b) 100% of 200% of a number
(c) 75% of 25% of a number
(d) 200% of 50% of a number

Answer : D

Question. 23418 is exactly divisible by 6. Which of the following numbers will leave a remainder 2 when divided by 6?
(a) 23412
(b) 23416
(c) 23420
(d) 23422

Answer : C

Question. The average height of Radhika, Gopu, Ashish and Komal shown above, is 118 cm. What  is the SUM of their heights?

(a) 156 cm
(b) 472 cm
(c) 590 cm
(d) We can't say from the given information.

Answer : B

Question. Which of the following lists has numbers arranged in INCREASING order?
(a) -1/8, -1/7, 1/8, 1/8
(b) -1/8, -1/7, 1/8, 1/8
(c) -1/8, -1/7, 1/8, 1/7
(d) -1/7, -1/8, 1/8, 1/7

Answer : D

Question. 9.03 ÷ 899. 8 is closest to
(a) 0.01
(b) 0.001
(c) 1
(d) 100

Answer : A

Question. n! is defined as the product of the first n natural numbers. For example, 4! = 1 x 2 x 3 x 4 = 24.
What is? 8!/6!
(a) 40320
(b) 720
(c) 56
(d) 8

Answer : C

Question. Which of the following will have the maximum number of 6's when written in decimal form?
(a) 666/1000
(b) 3/6
(c) 3/5
(d) 2/3

Answer : D

Question. If n is a negative number, which of the following would be a positive number for ALL values of n?
(a) 2n
(b) n + 5
(c) n³
(d) 3n⁴

Answer : D

Question. What is 7799 ÷ 19?
(a) Quotient = 41, Remainder = 0
(b) Quotient = 41, Remainder = 9
(c) Quotient = 41.4, Remainder = 14
(d) Quotient = 410, Remainder = 9

Answer : D

Question. x is an integer and 5 - x > 15. 
The largest possible value that x can take is
(a) 10
(b) -10
(c) -11
(d) 15

Answer : C

Question. If the pattern above is continued, what will it look like between 93 and 95?

Answer : C

Question. Which of these numbers will reduce the most in value if the 7 in it is changed to a 6?
(a) 7.045 × 10²
(b) 375.6 × 10⁰
(c) 0.72 × 10⁴
(d) 3.00007 × 10⁵

Answer : C

Question. How many times would you have written the letter 'c' if you complete writing this pattern up to the end of the TENTH row?

(a) 10
(b) 15
(c) 19
(d) 45

Answer : B

Question. In which row will there be 49 letters?

(a) 7th
(b) 24th
(c) 25th
(d) 49th

Answer : C

Question. The sum of two numbers is -6. 5 and their difference is 4. 5. What are the numbers?
(a) -1. 25 and -5. 25
(b) 1. 25 and -5. 25
(c) -1 and -5. 5
(d) 1 and -7.5

Answer : C

Question. When is a number always divisible by 90?
(A) If it is divisible by both 2 and 45.
(B) If it is not divisible by both 5 and 18.
(C) If it is not divisible by both 9 and 10.
(D) If it is divisible by 3 and 20.
Answer : A

Question. 32 + m is a prime number. What is the least value of 'm'?
(A) 3
(B) 5
(C) 6
(D) 4
Answer : B

Question. By which of these numbers is the number 31 16365 divisible?
(A) 5
(B) 7
(C) Both 5 and 7
(D) 6
Answer : C

Question. Which is the least number of 4 digits that is exactly divisible by 13?
(A) 1052
(B) 1039
(C) 1032
(D) 1001
Answer : D

Question. N is a 5-digit number divisible by 5. If N is bigger than 10000 and smaller than 10010, what is the value of N?
(A) 10000
(B) 10010
(C) 10005
(D) 10001
Answer : C

Question. By which of the following numbers is 477 not divisible?
(A) 3
(B) 7
(C) 53
(D) 9
Answer : B

Question. A prime number is greater than 30 and lesser than 60. What is the greatest possible such number?
(A) 37
(B) 53
(C) 43
(D) 59
Answer : D

Question. If a number is divisible by 9, it is also divisible by which number?
(A) 3
(B) 6
(C) 2
(D) 4
Answer : A

Question. Identify the even prime number.
(A) 132
(B) 102
(C) 284
(D) 2
Answer : D

Question. What value should be given to * so that the number 653*47 is divisible by 11 ?
(A) 1
(B) 6
(C) 2
(D) 9
Answer : A

Question.  Which of the given numbers is composite?
(A) 137
(B) 147
(C) 157
(D) 167
Answer : B

Question. Which of the following statements is true?
(A) A number is divisible by 4 if it is divisible by 2.
(B) A number is divisible by 9 if it is divisible by 3 .
(C) A number is divisible by 11 if the number formed by its last two digits is divisible by 11.
(D) A number is divisible by 8 if the number formed by its last three digits is divisible by 8.
Answer : D

Question. How many prime numbers are there between 1 00 and 200?
(A) 25
(B) 19
(C) 21
(D) 20
Answer : C

Question. If a - b is a multiple of 7, which of the following is also a multiple of 7?
(A) b- a
(B) ab
(C) a+ b
(D) a + b
Answer : A

Question. Identify the multiple of 8.
(A) 487718
(B) 505672
(C) 216428
(D) 763121
Answer : B

Question. Find D + E + F from the following.
DEF x D = 10 DF
(A) 12
(B) 4
(C) 3
(D) 5
Answer : A

Question. When 'n' is divided by 5, the remainder is 4. When 'n' is divided by 4, the remainder is 3. If 0 < n < 100, what is a possible value of 'n'?
(A) 9
(B) 14
(C) 19
(D) 24
Answer : C

Question. Which of the following is divisible by 12?
(A) 284382
(B) 624876
(C) 926248
(D) 746174
Answer : B

Question. Which of the following is not prime?
(A) 107
(B) 127
(C) 153
(D) 197
Answer : C

Question. Which of the following statements is false?
(A) If a number is divisible by 8, it must be divisible by 4.
(B) If a number is divisible by both 9 and 10, it is divisible by 90.
(C) The sum of two consecutive odd numbers is always divisible by 4.
(D) If a number is not divisible by both 3 and 4, it is divisible by 12.
Answer : D

Question. X is the least composite number between 85 and 100. What is the value of X?
(A) 85
(B) 99
(C) 100
(D) 86
Answer : D

Students must free download and practice these worksheets to gain more marks in exams. CBSE Class 8 Mathematics Worksheet - Playing with Numbers