Class 8 Playing With Numbers CBSE Questions & Answers

Class 8 · Playing With Numbers

This is Mathematics Class 8 Playing with Numbers CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Suppose that the division N \( \div \) 5 leaves a remainder of 4, and the division N \( \div \) 2 leaves a remainder of 1. What must be the one’s digit of N?
  • A
    7
  • B
    6
  • C
    8
  • D
    9
    Correct
2
Find the values of the letters in following:
Question 2 figure 1
  • A
    A = 1, B = 0, C = 1
  • B
    A = 5, B = 5, C = 5
  • C
    A = 5, B = 0, C = 5
  • D
    A = 5, B = 0, C = 1
    Correct
3
Find Q in the addition.
Question 3 figure 1
  • A
    5
  • B
    6
  • C
    7
  • D
    8
    Correct
4
The number 2146587 is divisible by ____.
  • A
    2
  • B
    6
  • C
    5
  • D
    3
    Correct
5
Write in generalised form: 128
  • A
    100 \( \times \) 1 + 10 \( \times \) 2 + 5
  • B
    100 \( \times \) 1 + 10 \( \times \) 8 + 2
  • C
    100 \( \times \) 2 + 10 \( \times \) 1 + 8
  • D
    100 \( \times \) 1 + 10 \( \times \) 2 + 8
    Correct
6
Write in the usual form: 100 \( \times \) 7 + 10 \( \times \) 5 + 6
  • A
    658
  • B
    756
    Correct
  • C
    786
  • D
    765
7
If the division N \( \div \) 5 leaves a remainder of 0, what might be the one’s digit of N?
  • A
    5
  • B
    Either 5 or 0
    Correct
  • C
    2
  • D
    7
8
If 21y5 is a multiple of 9, where y is a digit, what is the value of y?
  • A
    4
  • B
    2
  • C
    1
    Correct
  • D
    3
9
Find the values of the letters in following:
Question 9 figure 1
  • A
    A = 5, B = 0, C = 1
  • B
    A = 5, B = 0, C = 2
    Correct
  • C
    None of these
  • D
    A = 5, B = 5, C = 2
10
Find A and B in the addition.
Question 10 figure 1
  • A
    A = 1 and B = 5
  • B
    A = 5 and B = 5
  • C
    A = 5 and B = 1
    Correct
  • D
    A = 1 and B = 1
11
Write in generalised form: 425
  • A
    100 \( \times \) 4 + 10 \( \times \) 5 + 2
  • B
    100 \( \times \) 4 + 10 \( \times \) 2 + 5
    Correct
  • C
    100 \( \times \) 4 + 10 \( \times \) 8 + 5
  • D
    100 \( \times \) 5 + 10 \( \times \) 2 + 5
12
Write in the usual form: 10 \( \times \) 6 + 7
  • A
    67
    Correct
  • B
    76
  • C
    87
  • D
    57
13
If 31z5 is a multiple of 9, where z is a digit, what is the value of z?
  • A
    0 or 5
  • B
    0 or 9
    Correct
  • C
    0 or 4
  • D
    5 or 9
14
Find the values of the letters in following:
Question 14 figure 1
  • A
    A = 7, B = 4
    Correct
  • B
    A = 4, B = 7
  • C
    A = 7, B = 7
  • D
    A = 4, B = 4
15
Find the value of ‘A’ & ‘B’ from the following ?
Question 15 figure 1
  • A
    A = 6, B = 6
  • B
    A = 6, B = 7
  • C
    A = 7, B = 7
  • D
    A = 7, B = 6
    Correct