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)