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
Which of these numbers is divisible by 6?
  • A
    6053
  • B
    5782
  • C
    8964
    Correct
  • D
    2666
2
Write in generalised form: 25
  • A
    10 \( \times \) 5 + 3
  • B
    10 \( \times \) 5 + 2
  • C
    10 \( \times \) 2 + 5
    Correct
  • D
    10 \( \times \) 3 + 5
3
Write in the usual form: 10 \( \times \) 5 + 6
  • A
    56
    Correct
  • B
    65
  • C
    54
  • D
    25
4
If the division N \( \div \) 5 leaves a remainder of 3, what might be the ones digit of N?
  • A
    Either 7 or 2
  • B
    1
  • C
    5
  • D
    Either 3 or 8
    Correct
5
If the division N \( \div \)2 leaves a remainder of 1, what might be the one’s digit of N?
  • A
    The one’s digit must be 5 or 0.
  • B
    None of these
  • C
    The one’s digit must be 1, 3, 5, 7 or 9.
    Correct
  • D
    The one’s digit must be 0, 2, 4, 6 or 8.
6
Find the values of the letters in following:
Question 6 figure 1
  • A
    A = 4, B = 5
  • B
    A = 4, B = 7
    Correct
  • C
    A = 2, B = 7
  • D
    None of these
7
The number 21436587 is divisible by _____.
  • A
    9
    Correct
  • B
    2
  • C
    6
  • D
    None of these
8
Write in generalised form: 73
  • A
    10 \( \times \) 3 + 5
  • B
    10 \( \times \) 3 + 7
  • C
    10 \( \times \) 7 + 2
  • D
    10 \( \times \) 7 + 3
    Correct
9
Write in the usual form: 100 \( \times \) 7 + 10 \( \times \) 1 + 8
  • A
    178
  • B
    781
  • C
    871
  • D
    718
    Correct
10
If the division N ÷ 5 leaves a remainder of 1, what might be the one’s digit of N?
  • A
    1
  • B
    5
  • C
    6
    Correct
  • D
    0
11
If the division N \( \div \)2 leaves no remainder (i.e., zero remainder), what might be the one’s digit of N?
  • A
    The one’s digit must be 1, 3, 5, 7 or 9.
  • B
    None of these
  • C
    The one’s digit must be 0, 2, 4, 6 or 8.
    Correct
  • D
    The one’s digit must be 5 or 0.
12
Find the values of the letters in following:
Question 12 figure 1
  • A
    None of these
  • B
    A = 1, B = 1
  • C
    A = 8, B = 8
  • D
    A = 8, B = 1
    Correct
13
Write in generalised form: 85
  • A
    10 \( \times \) 8 + 5
    Correct
  • B
    10 \( \times \) 3 + 5
  • C
    10 \( \times \) 5 + 3
  • D
    10 \( \times \) 5 + 8
14
Write in the usual form: 100 \( \times \) a + 10 \( \times \) c + b
  • A
    bac
  • B
    acb
    Correct
  • C
    abc
  • D
    bca
15
If the division N \( \div \) 5 leaves a remainder of 4, what might be the one’s digit of N?
  • A
    7
  • B
    5
  • C
    Either 4 or 9
    Correct
  • D
    Either 2 or 7