EduSahara™ Assignment
Name : Rational Numbers and their Decimal Representation
Chapter : Rational Numbers
Grade : SSC Grade VIII
License : Non Commercial Use
Question
1
1.
Express
3
7
as a decimal correct to 1 decimal places
(i)
0.6
(ii)
0.5
(iii)
0.4
(iv)
0.2
(v)
0.3
Question
2
2.
Express
8
9
as a decimal correct to 2 decimal places
(i)
0.79
(ii)
0.69
(iii)
0.89
(iv)
0.99
(v)
1.09
Question
3
3.
Express
5
4
as a decimal correct to 3 decimal places
(i)
1.15
(ii)
1.25
(iii)
1.05
(iv)
1.35
(v)
1.45
Question
4
4.
Express
81
88
as a decimal correct to 1 decimal places
(i)
1
(ii)
0.8
(iii)
0.9
(iv)
0.7
(v)
1.1
Question
5
5.
Express
701
808
as a decimal correct to 3 decimal places
(i)
0.968
(ii)
0.868
(iii)
0.668
(iv)
0.768
(v)
1.068
Question
6
6.
Express
6979
1560
as a decimal correct to 4 decimal places
(i)
4.3737
(ii)
4.5737
(iii)
4.2737
(iv)
4.4737
(v)
4.6737
Question
7
7.
Find the period of the recurring decimal
11.
4
(i)
0
(ii)
4
(iii)
2
(iv)
40
(v)
1
Question
8
8.
Find the period of the recurring decimal
4.23809523809523...
(i)
7
(ii)
6
(iii)
23809
(iv)
238095
(v)
2380950
Question
9
9.
Find the periodicity of the recurring decimal
11.
925
(i)
1
(ii)
3
(iii)
2
(iv)
4
(v)
925
Question
10
10.
Find the periodicity of the recurring decimal
0.33333333333333...
(i)
0
(ii)
1
(iii)
2
(iv)
3
(v)
-1
Question
11
11.
The recurring part of the decimal
0.
3
is
(i)
3
(ii)
0.3
(iii)
330
(iv)
333
(v)
33
Question
12
12.
The recurring part of the decimal
17.27777777777777...
is
(i)
17.27
(ii)
727
(iii)
771
(iv)
7
(v)
77
Question
13
13.
Convert the non-terminating recurring decimal
19.
703
to rational number
(i)
530
27
(ii)
532
25
(iii)
532
27
(iv)
532
29
(v)
178
9
Question
14
14.
Convert the non-terminating recurring decimal
2.47619047619047...
to rational number
(i)
18
7
(ii)
52
23
(iii)
52
19
(iv)
52
21
(v)
50
21
Question
15
15.
Convert the fraction
61
9
to non-terminating recurring decimal
(i)
6.
7
(ii)
0.06
7
(iii)
0.6
7
(iv)
67.
7
(v)
677.
7
Question
16
16.
Convert the fraction
1
3
to non-terminating recurring decimal
(i)
0.0
3
(ii)
3.
3
(iii)
33.
3
(iv)
0.
3
(v)
0.
0
Question
17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
106
9
(ii)
3808
40
(iii)
952
5
(iv)
3456
80
(v)
481
5
Question
18
18.
Which of the following fractions converts to a terminating decimal?
(i)
3536
200
(ii)
233
135
(iii)
269
18
(iv)
233
18
(v)
233
234
Question
19
19.
Which of the following is an irrational number?
(i)
3
18
(ii)
(-3)
(iii)
1
(iv)
√
69
(v)
8.7222
Question
20
20.
Which of the following is a rational number?
(i)
√
92
(ii)
3
√
64
(iii)
3
√
77
(iv)
14
19
(v)
√
85
Question
21
21.
Express
2
3
as a decimal correct to 2 decimal places
(i)
0.07
(ii)
0.47
(iii)
6.67
(iv)
0.67
(v)
0.77
Question
22
22.
Express
14
13
as a decimal correct to 2 decimal places
(i)
1.08
(ii)
10.77
(iii)
0.11
(iv)
1.18
(v)
0.88
Question
23
23.
Express
28
19
as a decimal correct to 2 decimal places
(i)
1.57
(ii)
1.27
(iii)
0.15
(iv)
1.47
(v)
14.74
Question
24
24.
Express
61
37
as a decimal correct to 2 decimal places
(i)
0.16
(ii)
1.65
(iii)
1.75
(iv)
16.49
(v)
1.45
Question
25
25.
Express
3
10
as a decimal correct to 1 decimal places
(i)
0.3
(ii)
0
(iii)
0.1
(iv)
3
(v)
0.4
Question
26
26.
Express
17
100
as a decimal correct to 2 decimal places
(i)
1.7
(ii)
0.27
(iii)
-0.03
(iv)
0.17
(v)
0.02
Question
27
27.
Express
817
1000
as a decimal correct to 3 decimal places
(i)
0.817
(ii)
8.17
(iii)
0.082
(iv)
0.617
(v)
0.917
Question
28
28.
Express
3199
10000
as a decimal correct to 4 decimal places
(i)
0.4199
(ii)
0.032
(iii)
0.3199
(iv)
0.1199
(v)
3.199
Question
29
29.
6.3 =
(i)
63
10
(ii)
63
100
(iii)
63
1000
(iv)
630
(v)
63
Question
30
30.
5.8 =
(i)
29
5
(ii)
29
500
(iii)
58
(iv)
29
50
(v)
580
Question
31
31.
7.88 =
(i)
788
(ii)
197
2500
(iii)
394
5
(iv)
197
25
(v)
197
250
Question
32
32.
4.910 =
(i)
491
1000
(ii)
491
10
(iii)
491
100
(iv)
491
10000
(v)
491
Question
33
33.
6.1 =
(i)
61
(ii)
61
10
(iii)
61
1000
(iv)
61
100
(v)
610
Question
34
34.
10.11 =
(i)
1011
10
(ii)
1011
10000
(iii)
1011
(iv)
1011
100
(v)
1011
1000
Question
35
35.
3.27 =
(i)
327
10
(ii)
327
(iii)
327
1000
(iv)
327
10000
(v)
327
100
Question
36
36.
7.365 =
(i)
1473
20000
(ii)
1473
20
(iii)
1473
2000
(iv)
1473
200
(v)
1473
2
Question
37
37.
Express
5
8
as a decimal correct to 4 decimal places
(i)
0.525
(ii)
0.725
(iii)
0.425
(iv)
0.825
(v)
0.625
Question
38
38.
Express
39
14
as a decimal correct to 2 decimal places
(i)
2.89
(ii)
2.99
(iii)
2.69
(iv)
2.59
(v)
2.79
Question
39
39.
Express
42
47
as a decimal correct to 3 decimal places
(i)
0.894
(ii)
0.994
(iii)
0.694
(iv)
0.794
(v)
1.094
Question
40
40.
Express
29
32
as a decimal correct to 4 decimal places
(i)
0.9062
(ii)
1.0063
(iii)
1.1062
(iv)
0.8063
(v)
0.7063
Assignment Key
1) (iii)
2) (iii)
3) (ii)
4) (iii)
5) (ii)
6) (iv)
7) (ii)
8) (iv)
9) (ii)
10) (ii)
11) (i)
12) (iv)
13) (iii)
14) (iv)
15) (i)
16) (iv)
17) (i)
18) (i)
19) (iv)
20) (iv)
21) (iv)
22) (i)
23) (iv)
24) (ii)
25) (i)
26) (iv)
27) (i)
28) (iii)
29) (i)
30) (i)
31) (iv)
32) (iii)
33) (ii)
34) (iv)
35) (v)
36) (iv)
37) (v)
38) (v)
39) (i)
40) (i)