EduSahara™ Assignment
Name : Rational Numbers and their Decimal Representation
Chapter : Rational Numbers
Grade : SSC Grade VIII
License : Non Commercial Use
Question 1
1.
    • Express
    • 10

      3
    • as a decimal correct to 1 decimal places
  • (i)
    3.2
  • (ii)
    3.5
  • (iii)
    3.4
  • (iv)
    3.1
  • (v)
    3.3
Question 2
2.
    • Express
    • 7

      2
    • as a decimal correct to 2 decimal places
  • (i)
    3.3
  • (ii)
    3.5
  • (iii)
    3.7
  • (iv)
    3.6
  • (v)
    3.4
Question 3
3.
    • Express
    • 9

      5
    • as a decimal correct to 3 decimal places
  • (i)
    1.9
  • (ii)
    2
  • (iii)
    1.6
  • (iv)
    1.8
  • (v)
    1.7
Question 4
4.
    • Express
    • 93

      71
    • as a decimal correct to 1 decimal places
  • (i)
    1.5
  • (ii)
    1.4
  • (iii)
    1.1
  • (iv)
    1.3
  • (v)
    1.2
Question 5
5.
    • Express
    • 565

      768
    • as a decimal correct to 3 decimal places
  • (i)
    0.836
  • (ii)
    0.636
  • (iii)
    0.736
  • (iv)
    0.536
  • (v)
    0.936
Question 6
6.
    • Express
    • 4329

      6848
    • as a decimal correct to 4 decimal places
  • (i)
    0.5322
  • (ii)
    0.7322
  • (iii)
    0.6322
  • (iv)
    0.8322
  • (v)
    0.4322
Question 7
7.
    • Find the period of the recurring decimal
    • 12.
      962
  • (i)
    962
  • (ii)
    96
  • (iii)
    9620
  • (iv)
    3
  • (v)
    4
Question 8
8.
    • Find the period of the recurring decimal
    • 30.88888888888888...
  • (i)
    1
  • (ii)
    0
  • (iii)
    2
  • (iv)
    8
  • (v)
    80
Question 9
9.
    • Find the periodicity of the recurring decimal
    • 13.
      7
  • (i)
    0
  • (ii)
    -1
  • (iii)
    7
  • (iv)
    1
  • (v)
    2
Question 10
10.
    • Find the periodicity of the recurring decimal
    • 14.92592592592592...
  • (i)
    925
  • (ii)
    3
  • (iii)
    4
  • (iv)
    2
  • (v)
    1
Question 11
11.
    • The recurring part of the decimal
    • 3.
      1
    • is
  • (i)
    111
  • (ii)
    3.1
  • (iii)
    11
  • (iv)
    1
  • (v)
    113
Question 12
12.
    • The recurring part of the decimal
    • 12.19047619047618...
    • is
  • (i)
    1904761190476
  • (ii)
    19047611
  • (iii)
    190476190476
  • (iv)
    190476
  • (v)
    12.190476
Question 13
13.
    • Convert the non-terminating recurring decimal
    • 24.
      2
    • to rational number
  • (i)
    220

    9
  • (ii)
    24
  • (iii)
    218

    9
  • (iv)
    218

    11
  • (v)
    218

    7
Question 14
14.
    • Convert the non-terminating recurring decimal
    • 19.11111111111111...
    • to rational number
  • (i)
    170

    9
  • (ii)
    172

    7
  • (iii)
    58

    3
  • (iv)
    172

    11
  • (v)
    172

    9
Question 15
15.
    • Convert the fraction
    • 269

      21
    • to non-terminating recurring decimal
  • (i)
    1280.
    952380
  • (ii)
    128.
    095238
  • (iii)
    12.
    809523
  • (iv)
    0.12
    809523
  • (v)
    1.2
    809523
Question 16
16.
    • Convert the fraction
    • 422

      27
    • to non-terminating recurring decimal
  • (i)
    1.5
    629
  • (ii)
    156.
    296
  • (iii)
    1562.
    962
  • (iv)
    15.
    629
  • (v)
    0.15
    629
Question 17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
  • (i)
    118

    9
  • (ii)
    181

    16
  • (iii)
    3230

    320
  • (iv)
    1320

    128
  • (v)
    165

    8
Question 18
18.
Which of the following fractions converts to a terminating decimal?
  • (i)
    188

    9
  • (ii)
    2

    39
  • (iii)
    1

    3
  • (iv)
    1848

    64
  • (v)
    1

    51
Question 19
19.
    • Which of the following is an irrational number?
  • (i)



    38
  • (ii)
    9
  • (iii)
    3

    21
  • (iv)
    2.9048
  • (v)
    1
Question 20
20.
    • Which of the following is a rational number?
  • (i)
    5

    6
  • (ii)



    42
  • (iii)



    91
  • (iv)



    32
  • (v)
    3


    92
Question 21
21.
    • Express
    • 9

      8
    • as a decimal correct to 2 decimal places
  • (i)
    1.12
  • (ii)
    0.11
  • (iii)
    11.25
  • (iv)
    0.93
  • (v)
    1.23
Question 22
22.
    • Express
    • 19

      11
    • as a decimal correct to 2 decimal places
  • (i)
    1.83
  • (ii)
    0.17
  • (iii)
    17.27
  • (iv)
    1.73
  • (v)
    1.53
Question 23
23.
    • Express
    • 19

      37
    • as a decimal correct to 2 decimal places
  • (i)
    0.61
  • (ii)
    0.05
  • (iii)
    0.51
  • (iv)
    0.31
  • (v)
    5.14
Question 24
24.
    • Express
    • 50

      49
    • as a decimal correct to 2 decimal places
  • (i)
    0.82
  • (ii)
    10.2
  • (iii)
    1.02
  • (iv)
    1.12
  • (v)
    0.1
Question 25
25.
    • Express
    • 7

      10
    • as a decimal correct to 1 decimal places
  • (i)
    0.8
  • (ii)
    7
  • (iii)
    0.7
  • (iv)
    0.5
  • (v)
    0.1
Question 26
26.
    • Express
    • 31

      100
    • as a decimal correct to 2 decimal places
  • (i)
    0.41
  • (ii)
    0.31
  • (iii)
    3.1
  • (iv)
    0.11
  • (v)
    0.03
Question 27
27.
    • Express
    • 489

      1000
    • as a decimal correct to 3 decimal places
  • (i)
    0.289
  • (ii)
    0.589
  • (iii)
    4.89
  • (iv)
    0.489
  • (v)
    0.049
Question 28
28.
    • Express
    • 1439

      10000
    • as a decimal correct to 4 decimal places
  • (i)
    0.1439
  • (ii)
    0.2439
  • (iii)
    1.439
  • (iv)
    -0.0561
  • (v)
    0.0144
Question 29
29.
10.6 =
  • (i)
    106
  • (ii)
    53

    500
  • (iii)
    1060
  • (iv)
    53

    50
  • (v)
    53

    5
Question 30
30.
10.7 =
  • (i)
    107

    10
  • (ii)
    107

    1000
  • (iii)
    107
  • (iv)
    107

    100
  • (v)
    1070
Question 31
31.
1.76 =
  • (i)
    11

    625
  • (ii)
    176
  • (iii)
    22

    125
  • (iv)
    88

    5
  • (v)
    44

    25
Question 32
32.
6.394 =
  • (i)
    3197

    50
  • (ii)
    3197

    50000
  • (iii)
    3197

    5000
  • (iv)
    3197

    500
  • (v)
    3197

    5
Question 33
33.
9.4 =
  • (i)
    47

    5
  • (ii)
    940
  • (iii)
    47

    500
  • (iv)
    47

    50
  • (v)
    94
Question 34
34.
9.10 =
  • (i)
    91

    10
  • (ii)
    91
  • (iii)
    91

    1000
  • (iv)
    910
  • (v)
    91

    100
Question 35
35.
3.82 =
  • (i)
    191

    500
  • (ii)
    382
  • (iii)
    191

    50
  • (iv)
    191

    5000
  • (v)
    191

    5
Question 36
36.
4.733 =
  • (i)
    4733

    100
  • (ii)
    4733

    10000
  • (iii)
    4733

    1000
  • (iv)
    4733

    10
  • (v)
    4733

    100000
Question 37
37.
    • Express
    • 7

      5
    • as a decimal correct to 4 decimal places
  • (i)
    1.3
  • (ii)
    1.2
  • (iii)
    1.5
  • (iv)
    1.6
  • (v)
    1.4
Question 38
38.
    • Express
    • 90

      11
    • as a decimal correct to 2 decimal places
  • (i)
    7.98
  • (ii)
    8.08
  • (iii)
    8.18
  • (iv)
    8.38
  • (v)
    8.28
Question 39
39.
    • Express
    • 10

      53
    • as a decimal correct to 3 decimal places
  • (i)
    0.189
  • (ii)
    0.389
  • (iii)
    0.289
  • (iv)
    0.089
  • (v)
    -0.011
Question 40
40.
    • Express
    • 92

      99
    • as a decimal correct to 4 decimal places
  • (i)
    1.1293
  • (ii)
    0.9293
  • (iii)
    1.0293
  • (iv)
    0.8293
  • (v)
    0.7293
    Assignment Key

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