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

      4
    • as a decimal correct to 2 decimal places
  • (i)
    2.5
  • (ii)
    0.03
  • (iii)
    0.25
  • (iv)
    0.05
  • (v)
    0.35
Question 2
2.
    • Express
    • 13

      19
    • as a decimal correct to 2 decimal places
  • (i)
    0.68
  • (ii)
    0.78
  • (iii)
    0.48
  • (iv)
    6.84
  • (v)
    0.07
Question 3
3.
    • Express
    • 11

      6
    • as a decimal correct to 2 decimal places
  • (i)
    1.63
  • (ii)
    1.93
  • (iii)
    18.33
  • (iv)
    1.83
  • (v)
    0.18
Question 4
4.
    • Express
    • 1

      49
    • as a decimal correct to 2 decimal places
  • (i)
    0.02
  • (ii)
    0.12
  • (iii)
    0.2
  • (iv)
    -0.18
  • (v)
    0
Question 5
5.
    • Express
    • 1

      10
    • as a decimal correct to 1 decimal places
  • (i)
    0.2
  • (ii)
    1
  • (iii)
    0
  • (iv)
    -0.1
  • (v)
    0.1
Question 6
6.
    • Express
    • 13

      100
    • as a decimal correct to 2 decimal places
  • (i)
    -0.07
  • (ii)
    0.23
  • (iii)
    0.13
  • (iv)
    1.3
  • (v)
    0.01
Question 7
7.
    • Express
    • 813

      1000
    • as a decimal correct to 3 decimal places
  • (i)
    0.913
  • (ii)
    8.13
  • (iii)
    0.813
  • (iv)
    0.081
  • (v)
    0.613
Question 8
8.
    • Express
    • 9213

      10000
    • as a decimal correct to 4 decimal places
  • (i)
    1.0213
  • (ii)
    0.9213
  • (iii)
    0.0921
  • (iv)
    0.7213
  • (v)
    9.213
Question 9
9.
7.6 =
  • (i)
    760
  • (ii)
    76
  • (iii)
    19

    25
  • (iv)
    19

    250
  • (v)
    38

    5
Question 10
10.
4.6 =
  • (i)
    23

    500
  • (ii)
    23

    5
  • (iii)
    23

    50
  • (iv)
    46
  • (v)
    460
Question 11
11.
2.92 =
  • (i)
    73

    250
  • (ii)
    292
  • (iii)
    146

    5
  • (iv)
    73

    2500
  • (v)
    73

    25
Question 12
12.
2.451 =
  • (i)
    2451

    10
  • (ii)
    2451

    10000
  • (iii)
    2451

    1000
  • (iv)
    2451

    100000
  • (v)
    2451

    100
Question 13
13.
8.2 =
  • (i)
    82
  • (ii)
    41

    500
  • (iii)
    41

    5
  • (iv)
    820
  • (v)
    41

    50
Question 14
14.
3.11 =
  • (i)
    311

    10000
  • (ii)
    311

    1000
  • (iii)
    311
  • (iv)
    311

    100
  • (v)
    311

    10
Question 15
15.
3.69 =
  • (i)
    369

    10000
  • (ii)
    369

    10
  • (iii)
    369
  • (iv)
    369

    1000
  • (v)
    369

    100
Question 16
16.
1.453 =
  • (i)
    1453

    100000
  • (ii)
    1453

    10000
  • (iii)
    1453

    100
  • (iv)
    1453

    1000
  • (v)
    1453

    10
Question 17
17.
    • Express
    • 7

      8
    • as a decimal correct to 1 decimal places
  • (i)
    0.7
  • (ii)
    0.9
  • (iii)
    1
  • (iv)
    1.1
  • (v)
    0.8
Question 18
18.
    • Express
    • 1

      7
    • as a decimal correct to 2 decimal places
  • (i)
    0.04
  • (ii)
    0.14
  • (iii)
    -0.06
  • (iv)
    0.34
  • (v)
    0.24
Question 19
19.
    • Express
    • 4

      9
    • as a decimal correct to 3 decimal places
  • (i)
    0.244
  • (ii)
    0.344
  • (iii)
    0.444
  • (iv)
    0.544
  • (v)
    0.644
Question 20
20.
    • Express
    • 7

      3
    • as a decimal correct to 4 decimal places
  • (i)
    2.3333
  • (ii)
    2.1333
  • (iii)
    2.4333
  • (iv)
    2.5333
  • (v)
    2.2333
Question 21
21.
    • Express
    • 24

      61
    • as a decimal correct to 1 decimal places
  • (i)
    0.6
  • (ii)
    0.5
  • (iii)
    0.4
  • (iv)
    0.3
  • (v)
    0.2
Question 22
22.
    • Express
    • 98

      81
    • as a decimal correct to 2 decimal places
  • (i)
    1.21
  • (ii)
    1.31
  • (iii)
    1.41
  • (iv)
    1.01
  • (v)
    1.11
Question 23
23.
    • Express
    • 14

      17
    • as a decimal correct to 3 decimal places
  • (i)
    0.624
  • (ii)
    0.824
  • (iii)
    0.724
  • (iv)
    1.024
  • (v)
    0.924
Question 24
24.
    • Express
    • 97

      52
    • as a decimal correct to 4 decimal places
  • (i)
    1.6654
  • (ii)
    1.7654
  • (iii)
    1.8654
  • (iv)
    1.9654
  • (v)
    2.0654
Question 25
25.
    • Express
    • 196

      811
    • as a decimal correct to 3 decimal places
  • (i)
    0.442
  • (ii)
    0.042
  • (iii)
    0.242
  • (iv)
    0.342
  • (v)
    0.142
Question 26
26.
    • Express
    • 8234

      3641
    • as a decimal correct to 4 decimal places
  • (i)
    2.4615
  • (ii)
    2.2615
  • (iii)
    2.1615
  • (iv)
    2.0615
  • (v)
    2.3615
Question 27
27.
    • Find the period of the recurring decimal
    • 11.9
      4
  • (i)
    40
  • (ii)
    0
  • (iii)
    2
  • (iv)
    1
  • (v)
    4
Question 28
28.
    • Find the period of the recurring decimal
    • 11.55555555555555...
  • (i)
    2
  • (ii)
    1
  • (iii)
    5
  • (iv)
    0
  • (v)
    50
Question 29
29.
    • Find the periodicity of the recurring decimal
    • 26.
      761904
  • (i)
    6
  • (ii)
    7
  • (iii)
    4
  • (iv)
    761904
  • (v)
    5
Question 30
30.
    • Find the periodicity of the recurring decimal
    • 11.47619047619047...
  • (i)
    7
  • (ii)
    476190
  • (iii)
    6
  • (iv)
    5
  • (v)
    4
Question 31
31.
    • The recurring part of the decimal
    • 11.
      2
    • is
  • (i)
    22
  • (ii)
    11.2
  • (iii)
    2
  • (iv)
    221
  • (v)
    222
Question 32
32.
    • The recurring part of the decimal
    • 6.37037037037037...
    • is
  • (i)
    370
  • (ii)
    37036
  • (iii)
    6.370
  • (iv)
    370370
  • (v)
    3703370
Question 33
33.
    • Convert the non-terminating recurring decimal
    • 25.
      259
    • to rational number
  • (i)
    680

    27
  • (ii)
    682

    29
  • (iii)
    682

    27
  • (iv)
    682

    25
  • (v)
    76

    3
Question 34
34.
    • Convert the non-terminating recurring decimal
    • 1.38888888888888...
    • to rational number
  • (i)
    5

    4
  • (ii)
    25

    18
  • (iii)
    3

    2
  • (iv)
    23

    18
  • (v)
    25

    16
Question 35
35.
    • Convert the fraction
    • 1

      3
    • to non-terminating recurring decimal
  • (i)
    0.
    0
  • (ii)
    33.
    3
  • (iii)
    3.
    3
  • (iv)
    0.0
    3
  • (v)
    0.
    3
Question 36
36.
    • Convert the fraction
    • 679

      27
    • to non-terminating recurring decimal
  • (i)
    2.5
    148
  • (ii)
    0.25
    148
  • (iii)
    2514.
    814
  • (iv)
    25.
    148
  • (v)
    251.
    481
Question 37
37.
Which of the following fractions converts to a non-terminating recurring decimal?
  • (i)
    1521

    20
  • (ii)
    1

    3
  • (iii)
    4864

    64
  • (iv)
    3042

    80
  • (v)
    1561

    40
Question 38
38.
Which of the following fractions converts to a terminating decimal?
  • (i)
    251

    18
  • (ii)
    118

    9
  • (iii)
    4800

    160
  • (iv)
    251

    252
  • (v)
    251

    180
    Assignment Key

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