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)