EduSahara™ Assignment
Name : Rational Numbers and their Decimal Representation
Chapter : Rational Numbers
Grade : SSC Grade VIII
License : Non Commercial Use
Question 1
1.
    • Express
    • 5

      3
    • as a decimal correct to 1 decimal places
  • (i)
    1.8
  • (ii)
    1.5
  • (iii)
    1.6
  • (iv)
    1.9
  • (v)
    1.7
Question 2
2.
    • Express
    • 10

      9
    • as a decimal correct to 2 decimal places
  • (i)
    0.91
  • (ii)
    1.31
  • (iii)
    1.01
  • (iv)
    1.21
  • (v)
    1.11
Question 3
3.
    • Express
    • 3

      4
    • as a decimal correct to 3 decimal places
  • (i)
    0.65
  • (ii)
    0.75
  • (iii)
    0.55
  • (iv)
    0.85
  • (v)
    0.95
Question 4
4.
    • Express
    • 50

      29
    • as a decimal correct to 1 decimal places
  • (i)
    1.7
  • (ii)
    1.5
  • (iii)
    1.6
  • (iv)
    1.8
  • (v)
    1.9
Question 5
5.
    • Express
    • 43

      580
    • as a decimal correct to 3 decimal places
  • (i)
    -0.026
  • (ii)
    -0.126
  • (iii)
    0.074
  • (iv)
    0.274
  • (v)
    0.174
Question 6
6.
    • Express
    • 7330

      4393
    • as a decimal correct to 4 decimal places
  • (i)
    1.5686
  • (ii)
    1.6686
  • (iii)
    1.4686
  • (iv)
    1.8686
  • (v)
    1.7686
Question 7
7.
    • Find the period of the recurring decimal
    • 21.
      703
  • (i)
    4
  • (ii)
    703
  • (iii)
    3
  • (iv)
    7030
  • (v)
    70
Question 8
8.
    • Find the period of the recurring decimal
    • 11.77777777777777...
  • (i)
    70
  • (ii)
    0
  • (iii)
    2
  • (iv)
    1
  • (v)
    7
Question 9
9.
    • Find the periodicity of the recurring decimal
    • 11.
      619047
  • (i)
    6
  • (ii)
    619047
  • (iii)
    7
  • (iv)
    5
  • (v)
    4
Question 10
10.
    • Find the periodicity of the recurring decimal
    • 7.44444444444444...
  • (i)
    0
  • (ii)
    -1
  • (iii)
    1
  • (iv)
    4
  • (v)
    2
Question 11
11.
    • The recurring part of the decimal
    • 11.
      4
    • is
  • (i)
    4
  • (ii)
    444
  • (iii)
    441
  • (iv)
    44
  • (v)
    11.4
Question 12
12.
    • The recurring part of the decimal
    • 14.19047619047618...
    • is
  • (i)
    19047611
  • (ii)
    1904761190476
  • (iii)
    14.190476
  • (iv)
    190476190476
  • (v)
    190476
Question 13
13.
    • Convert the non-terminating recurring decimal
    • 29.
      380952
    • to rational number
  • (i)
    617

    21
  • (ii)
    619

    21
  • (iii)
    205

    7
  • (iv)
    617

    19
  • (v)
    617

    23
Question 14
14.
    • Convert the non-terminating recurring decimal
    • 5.88888888888888...
    • to rational number
  • (i)
    17

    3
  • (ii)
    53

    11
  • (iii)
    53

    7
  • (iv)
    53

    9
  • (v)
    55

    9
Question 15
15.
    • Convert the fraction
    • 478

      21
    • to non-terminating recurring decimal
  • (i)
    0.
    2
  • (ii)
    2276.
    190476
  • (iii)
    2.2
    761904
  • (iv)
    22.
    761904
  • (v)
    227.
    619047
Question 16
16.
    • Convert the fraction
    • 190

      9
    • to non-terminating recurring decimal
  • (i)
    0.2
    1
  • (ii)
    21.
    1
  • (iii)
    211.
    1
  • (iv)
    2111.
    1
  • (v)
    2.
    1
Question 17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
  • (i)
    2280

    128
  • (ii)
    3762

    32
  • (iii)
    1881

    8
  • (iv)
    353

    18
  • (v)
    1897

    16
Question 18
18.
Which of the following fractions converts to a terminating decimal?
  • (i)
    293

    153
  • (ii)
    293

    18
  • (iii)
    6460

    80
  • (iv)
    293

    324
  • (v)
    223

    18
Question 19
19.
    • Which of the following is an irrational number?
  • (i)
    17
  • (ii)



    58
  • (iii)
    (-4)
  • (iv)
    8

    11
  • (v)
    26.7778
Question 20
20.
    • Which of the following is a rational number?
  • (i)
    10

    13
  • (ii)
    3


    21
  • (iii)



    94
  • (iv)
    3


    45
  • (v)
    3


    17
Question 21
21.
    • Express
    • 1

      9
    • as a decimal correct to 2 decimal places
  • (i)
    1.11
  • (ii)
    0.01
  • (iii)
    -0.09
  • (iv)
    0.11
  • (v)
    0.21
Question 22
22.
    • Express
    • 8

      3
    • as a decimal correct to 2 decimal places
  • (i)
    2.67
  • (ii)
    26.67
  • (iii)
    0.27
  • (iv)
    2.77
  • (v)
    2.47
Question 23
23.
    • Express
    • 37

      21
    • as a decimal correct to 2 decimal places
  • (i)
    1.76
  • (ii)
    17.62
  • (iii)
    0.18
  • (iv)
    1.86
  • (v)
    1.56
Question 24
24.
    • Express
    • 85

      81
    • as a decimal correct to 2 decimal places
  • (i)
    0.1
  • (ii)
    0.85
  • (iii)
    1.05
  • (iv)
    1.15
  • (v)
    10.49
Question 25
25.
    • Express
    • 3

      10
    • as a decimal correct to 1 decimal places
  • (i)
    0
  • (ii)
    3
  • (iii)
    0.4
  • (iv)
    0.1
  • (v)
    0.3
Question 26
26.
    • Express
    • 83

      100
    • as a decimal correct to 2 decimal places
  • (i)
    0.83
  • (ii)
    8.3
  • (iii)
    0.08
  • (iv)
    0.63
  • (v)
    0.93
Question 27
27.
    • Express
    • 343

      1000
    • as a decimal correct to 3 decimal places
  • (i)
    3.43
  • (ii)
    0.343
  • (iii)
    0.443
  • (iv)
    0.143
  • (v)
    0.034
Question 28
28.
    • Express
    • 8329

      10000
    • as a decimal correct to 4 decimal places
  • (i)
    0.6329
  • (ii)
    0.0833
  • (iii)
    0.9329
  • (iv)
    8.329
  • (v)
    0.8329
Question 29
29.
5.8 =
  • (i)
    29

    5
  • (ii)
    580
  • (iii)
    58
  • (iv)
    29

    50
  • (v)
    29

    500
Question 30
30.
7.5 =
  • (i)
    3

    4
  • (ii)
    15

    2
  • (iii)
    750
  • (iv)
    75
  • (v)
    3

    40
Question 31
31.
1.56 =
  • (i)
    39

    25
  • (ii)
    39

    2500
  • (iii)
    39

    250
  • (iv)
    156
  • (v)
    78

    5
Question 32
32.
6.870 =
  • (i)
    687

    10
  • (ii)
    687

    1000
  • (iii)
    687

    100
  • (iv)
    687
  • (v)
    687

    10000
Question 33
33.
1.2 =
  • (i)
    6

    5
  • (ii)
    120
  • (iii)
    12
  • (iv)
    3

    25
  • (v)
    3

    250
Question 34
34.
3.16 =
  • (i)
    316
  • (ii)
    79

    2500
  • (iii)
    79

    25
  • (iv)
    158

    5
  • (v)
    79

    250
Question 35
35.
19.96 =
  • (i)
    499

    25
  • (ii)
    499

    250
  • (iii)
    499

    2500
  • (iv)
    1996
  • (v)
    998

    5
Question 36
36.
6.734 =
  • (i)
    3367

    50000
  • (ii)
    3367

    5
  • (iii)
    3367

    500
  • (iv)
    3367

    50
  • (v)
    3367

    5000
Question 37
37.
    • Express
    • 7

      3
    • as a decimal correct to 4 decimal places
  • (i)
    2.3333
  • (ii)
    2.5333
  • (iii)
    2.4333
  • (iv)
    2.1333
  • (v)
    2.2333
Question 38
38.
    • Express
    • 89

      87
    • as a decimal correct to 2 decimal places
  • (i)
    0.92
  • (ii)
    1.12
  • (iii)
    1.02
  • (iv)
    0.82
  • (v)
    1.22
Question 39
39.
    • Express
    • 85

      52
    • as a decimal correct to 3 decimal places
  • (i)
    1.635
  • (ii)
    1.735
  • (iii)
    1.535
  • (iv)
    1.435
  • (v)
    1.835
Question 40
40.
    • Express
    • 89

      65
    • as a decimal correct to 4 decimal places
  • (i)
    1.3692
  • (ii)
    1.1692
  • (iii)
    1.5692
  • (iv)
    1.4692
  • (v)
    1.2692
    Assignment Key

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