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
If the three digit number 24x is divisible by ‘9’, what is the value of ‘x’?
  • A
    5
  • B
    9
  • C
    4
  • D
    3
    Correct
2
If 21z5 is a multiple of ‘9’, where ‘z’ is a digit, find the value of ‘z’?
  • A
    2
  • B
    3
  • C
    5
  • D
    1
    Correct
3
Write the following in the usual form: 100 \( \times \) 4 + 10 \( \times \) 9 + 1 \( \times \) 7
  • A
    794
  • B
    479
  • C
    497
    Correct
  • D
    974
4
Write the following in the usual form: 10 \( \times \) 9 + 1 \( \times \) 7
  • A
    98
  • B
    None of these
  • C
    79
  • D
    97
    Correct
5
Write the following in the usual form: 100 \( \times \)c + 10 \( \times \) a + 1 \( \times \) b
  • A
    None of these
  • B
    cba
  • C
    cab
    Correct
  • D
    abc
6
Write the following in the usual form: 10 \( \times \) 5 + 1 \( \times \) 9
  • A
    59
    Correct
  • B
    95
  • C
    None of these
  • D
    58
7
Write the following in the usual form: 100 \( \times \) 3 + 10 \( \times \) 2 + 1 \( \times \) 5
  • A
    253
  • B
    352
  • C
    523
  • D
    325
    Correct
8
Write the following in the usual form: 100 \( \times \) 7 + 10 \( \times \)1 + 1 \( \times \) 4
  • A
    417
  • B
    147
  • C
    714
    Correct
  • D
    741
9
Write the following in the usual form: 100 \( \times \) x + 10 \( \times \) y + 1 \( \times \) z
  • A
    yxz
  • B
    xyz
    Correct
  • C
    None of these
  • D
    xzy
10
Write the following in the usual form: 100 \( \times \) 8 + 10 \( \times \) 6 + 1 \( \times \) 7
  • A
    876
  • B
    678
  • C
    768
  • D
    867
    Correct
11
Write the following in the usual form: 10 \( \times \) 4 + 1 \( \times \) 1
  • A
    None of these
  • B
    14
  • C
    41
    Correct
  • D
    42
12
Write the following in the usual form: 100 \( \times \) 8 + 10 \( \times \) 8 + 1 \( \times \) 8
  • A
    888
    Correct
  • B
    886
  • C
    887
  • D
    889
13
Write the following in the usual form: 100 \( \times \) 5 + 10 \( \times \) 0 + 1 \( \times \) 5
  • A
    550
  • B
    501
  • C
    505
    Correct
  • D
    506
14
Write the following in the usual form: 10 \( \times \) 9 + 1 \( \times \) 0
  • A
    90
    Correct
  • B
    91
  • C
    92
  • D
    94
15
Write the following in the usual form: 100 \( \times \) 9 + 10 \( \times \) 8 + 1 \( \times \) 7
  • A
    789
  • B
    967
  • C
    978
  • D
    987
    Correct