EduSahara™ Assignment
Name : Rational Numbers and their Decimal Representation
Chapter : Rational Numbers
Grade : SSC Grade VIII
License : Non Commercial Use
Question 1
1.
    • Express
    • 9

      2
    • as a decimal correct to 1 decimal places
  • (i)
    4.3
  • (ii)
    4.5
  • (iii)
    4.4
  • (iv)
    4.6
  • (v)
    4.7
Question 2
2.
    • Express
    • 5

      7
    • as a decimal correct to 2 decimal places
  • (i)
    0.61
  • (ii)
    0.71
  • (iii)
    0.91
  • (iv)
    0.51
  • (v)
    0.81
Question 3
3.
    • Express
    • 4

      3
    • as a decimal correct to 3 decimal places
  • (i)
    1.333
  • (ii)
    1.533
  • (iii)
    1.133
  • (iv)
    1.233
  • (v)
    1.433
Question 4
4.
    • Express
    • 89

      67
    • as a decimal correct to 1 decimal places
  • (i)
    1.5
  • (ii)
    1.2
  • (iii)
    1.1
  • (iv)
    1.3
  • (v)
    1.4
Question 5
5.
    • Express
    • 413

      125
    • as a decimal correct to 3 decimal places
  • (i)
    3.304
  • (ii)
    3.204
  • (iii)
    3.504
  • (iv)
    3.104
  • (v)
    3.404
Question 6
6.
    • Express
    • 5127

      3950
    • as a decimal correct to 4 decimal places
  • (i)
    1.298
  • (ii)
    1.098
  • (iii)
    1.198
  • (iv)
    1.498
  • (v)
    1.398
Question 7
7.
    • Find the period of the recurring decimal
    • 19.
      2
  • (i)
    20
  • (ii)
    2
  • (iii)
    1
  • (iv)
    0
Question 8
8.
    • Find the period of the recurring decimal
    • 21.51851851851851...
  • (i)
    3
  • (ii)
    4
  • (iii)
    518
  • (iv)
    5180
  • (v)
    51
Question 9
9.
    • Find the periodicity of the recurring decimal
    • 24.
      1
  • (i)
    1
  • (ii)
    -1
  • (iii)
    2
  • (iv)
    0
Question 10
10.
    • Find the periodicity of the recurring decimal
    • 17.55555555555555...
  • (i)
    2
  • (ii)
    5
  • (iii)
    0
  • (iv)
    1
  • (v)
    -1
Question 11
11.
    • The recurring part of the decimal
    • 15.
      7
    • is
  • (i)
    771
  • (ii)
    777
  • (iii)
    77
  • (iv)
    15.7
  • (v)
    7
Question 12
12.
    • The recurring part of the decimal
    • 16.25925925925925...
    • is
  • (i)
    2592259
  • (ii)
    25921
  • (iii)
    16.259
  • (iv)
    259259
  • (v)
    259
Question 13
13.
    • Convert the non-terminating recurring decimal
    • 0.
      3
    • to rational number
  • (i)
    (
    -1

    3
    )
  • (ii)
    1

    3
  • (iii)
    1
  • (iv)
    1

    5
Question 14
14.
    • Convert the non-terminating recurring decimal
    • 2.11111111111111...
    • to rational number
  • (i)
    19

    7
  • (ii)
    17

    9
  • (iii)
    19

    11
  • (iv)
    19

    9
  • (v)
    7

    3
Question 15
15.
    • Convert the fraction
    • 521

      18
    • to non-terminating recurring decimal
  • (i)
    28.9
    4
  • (ii)
    289.
    4
  • (iii)
    2894.
    4
  • (iv)
    2.89
    4
  • (v)
    0.289
    4
Question 16
16.
    • Convert the fraction
    • 1

      3
    • to non-terminating recurring decimal
  • (i)
    3.
    3
  • (ii)
    0.0
    3
  • (iii)
    0.
    0
  • (iv)
    0.
    3
  • (v)
    33.
    3
Question 17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
  • (i)
    5760

    50
  • (ii)
    2805

    32
  • (iii)
    2837

    32
  • (iv)
    2805

    16
  • (v)
    101

    9
Question 18
18.
Which of the following fractions converts to a terminating decimal?
  • (i)
    2

    33
  • (ii)
    2700

    160
  • (iii)
    1

    54
  • (iv)
    94

    9
  • (v)
    1

    3
Question 19
19.
    • Which of the following is an irrational number?
  • (i)
    7

    18
  • (ii)
    30.5926
  • (iii)
    26
  • (iv)
    3
  • (v)

    √


    13
Question 20
20.
    • Which of the following is a rational number?
  • (i)
    2

    10
  • (ii)
    3
    √


    60
  • (iii)
    3
    √


    83
  • (iv)
    3
    √


    87
  • (v)

    √


    12
Question 21
21.
    • Express
    • 7

      6
    • as a decimal correct to 2 decimal places
  • (i)
    0.12
  • (ii)
    1.27
  • (iii)
    0.97
  • (iv)
    11.67
  • (v)
    1.17
Question 22
22.
    • Express
    • 19

      6
    • as a decimal correct to 2 decimal places
  • (i)
    0.32
  • (ii)
    2.97
  • (iii)
    3.27
  • (iv)
    31.67
  • (v)
    3.17
Question 23
23.
    • Express
    • 4

      37
    • as a decimal correct to 2 decimal places
  • (i)
    0.11
  • (ii)
    0.21
  • (iii)
    1.08
  • (iv)
    0.01
  • (v)
    -0.09
Question 24
24.
    • Express
    • 37

      92
    • as a decimal correct to 2 decimal places
  • (i)
    4.02
  • (ii)
    0.4
  • (iii)
    0.2
  • (iv)
    0.04
  • (v)
    0.5
Question 25
25.
    • Express
    • 3

      10
    • as a decimal correct to 1 decimal places
  • (i)
    0.1
  • (ii)
    0.4
  • (iii)
    0
  • (iv)
    3
  • (v)
    0.3
Question 26
26.
    • Express
    • 73

      100
    • as a decimal correct to 2 decimal places
  • (i)
    7.3
  • (ii)
    0.07
  • (iii)
    0.53
  • (iv)
    0.73
  • (v)
    0.83
Question 27
27.
    • Express
    • 107

      1000
    • as a decimal correct to 3 decimal places
  • (i)
    0.107
  • (ii)
    0.011
  • (iii)
    0.207
  • (iv)
    -0.093
  • (v)
    1.07
Question 28
28.
    • Express
    • 5971

      10000
    • as a decimal correct to 4 decimal places
  • (i)
    0.3971
  • (ii)
    0.5971
  • (iii)
    0.0597
  • (iv)
    5.971
  • (v)
    0.6971
Question 29
29.
5.6 =
  • (i)
    28

    5
  • (ii)
    560
  • (iii)
    56
  • (iv)
    7

    125
  • (v)
    14

    25
Question 30
30.
1.8 =
  • (i)
    18
  • (ii)
    180
  • (iii)
    9

    50
  • (iv)
    9

    500
  • (v)
    9

    5
Question 31
31.
4.38 =
  • (i)
    219

    5
  • (ii)
    219

    500
  • (iii)
    438
  • (iv)
    219

    50
  • (v)
    219

    5000
Question 32
32.
5.907 =
  • (i)
    5907

    10
  • (ii)
    5907

    10000
  • (iii)
    5907

    100000
  • (iv)
    5907

    100
  • (v)
    5907

    1000
Question 33
33.
7.6 =
  • (i)
    19

    250
  • (ii)
    76
  • (iii)
    38

    5
  • (iv)
    19

    25
  • (v)
    760
Question 34
34.
8.11 =
  • (i)
    811

    100
  • (ii)
    811

    10000
  • (iii)
    811
  • (iv)
    811

    10
  • (v)
    811

    1000
Question 35
35.
20.40 =
  • (i)
    51

    250
  • (ii)
    102

    5
  • (iii)
    51

    25
  • (iv)
    204
  • (v)
    2040
Question 36
36.
10.958 =
  • (i)
    5479

    500
  • (ii)
    5479

    50
  • (iii)
    5479

    50000
  • (iv)
    5479

    5000
  • (v)
    5479

    5
Question 37
37.
    • Express
    • 5

      4
    • as a decimal correct to 4 decimal places
  • (i)
    1.45
  • (ii)
    1.15
  • (iii)
    1.25
  • (iv)
    1.05
  • (v)
    1.35
Question 38
38.
    • Express
    • 76

      21
    • as a decimal correct to 2 decimal places
  • (i)
    3.72
  • (ii)
    3.52
  • (iii)
    3.42
  • (iv)
    3.82
  • (v)
    3.62
Question 39
39.
    • Express
    • 23

      37
    • as a decimal correct to 3 decimal places
  • (i)
    0.622
  • (ii)
    0.822
  • (iii)
    0.722
  • (iv)
    0.522
  • (v)
    0.422
Question 40
40.
    • Express
    • 78

      97
    • as a decimal correct to 4 decimal places
  • (i)
    0.9041
  • (ii)
    0.8041
  • (iii)
    0.7041
  • (iv)
    0.6041
  • (v)
    1.0041
    Assignment Key

  •  1) (ii)
  •  2) (ii)
  •  3) (i)
  •  4) (iv)
  •  5) (i)
  •  6) (i)
  •  7) (ii)
  •  8) (iii)
  •  9) (i)
  •  10) (iv)
  •  11) (v)
  •  12) (v)
  •  13) (ii)
  •  14) (iv)
  •  15) (i)
  •  16) (iv)
  •  17) (v)
  •  18) (ii)
  •  19) (v)
  •  20) (i)
  •  21) (v)
  •  22) (v)
  •  23) (i)
  •  24) (ii)
  •  25) (v)
  •  26) (iv)
  •  27) (i)
  •  28) (ii)
  •  29) (i)
  •  30) (v)
  •  31) (iv)
  •  32) (v)
  •  33) (iii)
  •  34) (i)
  •  35) (ii)
  •  36) (i)
  •  37) (iii)
  •  38) (v)
  •  39) (i)
  •  40) (ii)