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

      2
    • as a decimal correct to 1 decimal places
  • (i)
    0.5
  • (ii)
    0.4
  • (iii)
    0.7
  • (iv)
    0.6
  • (v)
    0.3
Question 2
2.
    • Express
    • 5

      9
    • as a decimal correct to 2 decimal places
  • (i)
    0.46
  • (ii)
    0.76
  • (iii)
    0.56
  • (iv)
    0.66
  • (v)
    0.36
Question 3
3.
    • Express
    • 9

      4
    • as a decimal correct to 3 decimal places
  • (i)
    2.35
  • (ii)
    2.15
  • (iii)
    2.25
  • (iv)
    2.05
  • (v)
    2.45
Question 4
4.
    • Express
    • 88

      69
    • as a decimal correct to 1 decimal places
  • (i)
    1.3
  • (ii)
    1.4
  • (iii)
    1.1
  • (iv)
    1.5
  • (v)
    1.2
Question 5
5.
    • Express
    • 469

      108
    • as a decimal correct to 3 decimal places
  • (i)
    4.143
  • (ii)
    4.443
  • (iii)
    4.243
  • (iv)
    4.543
  • (v)
    4.343
Question 6
6.
    • Express
    • 558

      4657
    • as a decimal correct to 4 decimal places
  • (i)
    0.3198
  • (ii)
    0.0198
  • (iii)
    0.1198
  • (iv)
    0.2198
  • (v)
    -0.0802
Question 7
7.
    • Find the period of the recurring decimal
    • 4.
      238095
  • (i)
    6
  • (ii)
    7
  • (iii)
    2380950
  • (iv)
    23809
  • (v)
    238095
Question 8
8.
    • Find the period of the recurring decimal
    • 0.33333333333333...
  • (i)
    1
  • (ii)
    2
  • (iii)
    30
  • (iv)
    0
  • (v)
    3
Question 9
9.
    • Find the periodicity of the recurring decimal
    • 10.
      7
  • (i)
    7
  • (ii)
    -1
  • (iii)
    0
  • (iv)
    2
  • (v)
    1
Question 10
10.
    • Find the periodicity of the recurring decimal
    • 9.55555555555555...
  • (i)
    0
  • (ii)
    5
  • (iii)
    1
  • (iv)
    -1
  • (v)
    2
Question 11
11.
    • The recurring part of the decimal
    • 26.
      2
    • is
  • (i)
    2
  • (ii)
    26.2
  • (iii)
    22
  • (iv)
    222
Question 12
12.
    • The recurring part of the decimal
    • 14.61904761904761...
    • is
  • (i)
    61904761
  • (ii)
    6190476619047
  • (iii)
    14.619047
  • (iv)
    619047
  • (v)
    619047619047
Question 13
13.
    • Convert the non-terminating recurring decimal
    • 29.
      4
    • to rational number
  • (i)
    265

    11
  • (ii)
    89

    3
  • (iii)
    263

    9
  • (iv)
    265

    9
  • (v)
    265

    7
Question 14
14.
    • Convert the non-terminating recurring decimal
    • 0.33333333333333...
    • to rational number
  • (i)
    (
    -1

    3
    )
  • (ii)
    1

    5
  • (iii)
    1

    3
  • (iv)
    1
Question 15
15.
    • Convert the fraction
    • 125

      18
    • to non-terminating recurring decimal
  • (i)
    6.9
    4
  • (ii)
    694.
    4
  • (iii)
    0.69
    4
  • (iv)
    69.
    4
  • (v)
    0.069
    4
Question 16
16.
    • Convert the fraction
    • 1

      3
    • to non-terminating recurring decimal
  • (i)
    0.
    3
  • (ii)
    33.
    3
  • (iii)
    3.
    3
  • (iv)
    0.
    0
  • (v)
    0.0
    3
Question 17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
  • (i)
    3120

    16
  • (ii)
    139

    9
  • (iii)
    196

    1
  • (iv)
    3520

    200
  • (v)
    390

    1
Question 18
18.
Which of the following fractions converts to a terminating decimal?
  • (i)
    113

    72
  • (ii)
    113

    108
  • (iii)
    349

    18
  • (iv)
    2964

    160
  • (v)
    113

    9
Question 19
19.
    • Which of the following is an irrational number?
  • (i)
    1

    2
  • (ii)
    (-3)
  • (iii)
    25
  • (iv)
    10.963
  • (v)
    3


    46
Question 20
20.
    • Which of the following is a rational number?
  • (i)



    93
  • (ii)
    3


    29
  • (iii)



    56
  • (iv)
    1

    3
  • (v)
    3


    25
Question 21
21.
    • Express
    • 3

      4
    • as a decimal correct to 2 decimal places
  • (i)
    0.07
  • (ii)
    0.85
  • (iii)
    0.75
  • (iv)
    7.5
  • (v)
    0.55
Question 22
22.
    • Express
    • 7

      12
    • as a decimal correct to 2 decimal places
  • (i)
    0.58
  • (ii)
    0.38
  • (iii)
    0.68
  • (iv)
    0.06
  • (v)
    5.83
Question 23
23.
    • Express
    • 24

      11
    • as a decimal correct to 2 decimal places
  • (i)
    1.98
  • (ii)
    2.18
  • (iii)
    2.28
  • (iv)
    0.22
  • (v)
    21.82
Question 24
24.
    • Express
    • 39

      44
    • as a decimal correct to 2 decimal places
  • (i)
    8.86
  • (ii)
    0.99
  • (iii)
    0.89
  • (iv)
    0.69
  • (v)
    0.09
Question 25
25.
    • Express
    • 9

      10
    • as a decimal correct to 1 decimal places
  • (i)
    9
  • (ii)
    0.7
  • (iii)
    0.1
  • (iv)
    0.9
  • (v)
    1
Question 26
26.
    • Express
    • 13

      100
    • as a decimal correct to 2 decimal places
  • (i)
    1.3
  • (ii)
    0.13
  • (iii)
    0.01
  • (iv)
    0.23
  • (v)
    -0.07
Question 27
27.
    • Express
    • 313

      1000
    • as a decimal correct to 3 decimal places
  • (i)
    0.313
  • (ii)
    0.413
  • (iii)
    3.13
  • (iv)
    0.031
  • (v)
    0.113
Question 28
28.
    • Express
    • 9901

      10000
    • as a decimal correct to 4 decimal places
  • (i)
    0.7901
  • (ii)
    0.9901
  • (iii)
    0.099
  • (iv)
    1.0901
  • (v)
    9.901
Question 29
29.
9.6 =
  • (i)
    96
  • (ii)
    960
  • (iii)
    48

    5
  • (iv)
    12

    125
  • (v)
    24

    25
Question 30
30.
6.8 =
  • (i)
    34

    5
  • (ii)
    680
  • (iii)
    17

    25
  • (iv)
    68
  • (v)
    17

    250
Question 31
31.
16.40 =
  • (i)
    82

    5
  • (ii)
    41

    250
  • (iii)
    164
  • (iv)
    41

    25
  • (v)
    1640
Question 32
32.
5.219 =
  • (i)
    5219

    1000
  • (ii)
    5219

    10000
  • (iii)
    5219

    10
  • (iv)
    5219

    100
  • (v)
    5219

    100000
Question 33
33.
1.2 =
  • (i)
    6

    5
  • (ii)
    120
  • (iii)
    3

    250
  • (iv)
    3

    25
  • (v)
    12
Question 34
34.
7.15 =
  • (i)
    715
  • (ii)
    143

    200
  • (iii)
    143

    20
  • (iv)
    143

    2
  • (v)
    143

    2000
Question 35
35.
15.97 =
  • (i)
    1597

    100
  • (ii)
    1597

    1000
  • (iii)
    1597

    10000
  • (iv)
    1597
  • (v)
    1597

    10
Question 36
36.
7.757 =
  • (i)
    7757

    10000
  • (ii)
    7757

    1000
  • (iii)
    7757

    100000
  • (iv)
    7757

    10
  • (v)
    7757

    100
Question 37
37.
    • Express
    • 3

      5
    • as a decimal correct to 4 decimal places
  • (i)
    0.6
  • (ii)
    0.8
  • (iii)
    0.4
  • (iv)
    0.7
  • (v)
    0.5
Question 38
38.
    • Express
    • 43

      50
    • as a decimal correct to 2 decimal places
  • (i)
    0.96
  • (ii)
    0.76
  • (iii)
    0.66
  • (iv)
    0.86
  • (v)
    1.06
Question 39
39.
    • Express
    • 44

      25
    • as a decimal correct to 3 decimal places
  • (i)
    1.76
  • (ii)
    1.56
  • (iii)
    1.96
  • (iv)
    1.66
  • (v)
    1.86
Question 40
40.
    • Express
    • 80

      69
    • as a decimal correct to 4 decimal places
  • (i)
    1.1594
  • (ii)
    1.3594
  • (iii)
    0.9594
  • (iv)
    1.0594
  • (v)
    1.2594
    Assignment Key

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