EduSahara™ Assignment
Name : Rational Numbers and their Decimal Representation
Chapter : Rational Numbers
Grade : SSC Grade VIII
License : Non Commercial Use
Question
1
1.
Express
9
2
as a decimal correct to 1 decimal places
(i)
4.3
(ii)
4.5
(iii)
4.4
(iv)
4.6
(v)
4.7
Question
2
2.
Express
5
7
as a decimal correct to 2 decimal places
(i)
0.61
(ii)
0.71
(iii)
0.91
(iv)
0.51
(v)
0.81
Question
3
3.
Express
4
3
as a decimal correct to 3 decimal places
(i)
1.333
(ii)
1.533
(iii)
1.133
(iv)
1.233
(v)
1.433
Question
4
4.
Express
89
67
as a decimal correct to 1 decimal places
(i)
1.5
(ii)
1.2
(iii)
1.1
(iv)
1.3
(v)
1.4
Question
5
5.
Express
413
125
as a decimal correct to 3 decimal places
(i)
3.304
(ii)
3.204
(iii)
3.504
(iv)
3.104
(v)
3.404
Question
6
6.
Express
5127
3950
as a decimal correct to 4 decimal places
(i)
1.298
(ii)
1.098
(iii)
1.198
(iv)
1.498
(v)
1.398
Question
7
7.
Find the period of the recurring decimal
19.
2
(i)
20
(ii)
2
(iii)
1
(iv)
0
Question
8
8.
Find the period of the recurring decimal
21.51851851851851...
(i)
3
(ii)
4
(iii)
518
(iv)
5180
(v)
51
Question
9
9.
Find the periodicity of the recurring decimal
24.
1
(i)
1
(ii)
-1
(iii)
2
(iv)
0
Question
10
10.
Find the periodicity of the recurring decimal
17.55555555555555...
(i)
2
(ii)
5
(iii)
0
(iv)
1
(v)
-1
Question
11
11.
The recurring part of the decimal
15.
7
is
(i)
771
(ii)
777
(iii)
77
(iv)
15.7
(v)
7
Question
12
12.
The recurring part of the decimal
16.25925925925925...
is
(i)
2592259
(ii)
25921
(iii)
16.259
(iv)
259259
(v)
259
Question
13
13.
Convert the non-terminating recurring decimal
0.
3
to rational number
(i)
(
-1
3
)
(ii)
1
3
(iii)
1
(iv)
1
5
Question
14
14.
Convert the non-terminating recurring decimal
2.11111111111111...
to rational number
(i)
19
7
(ii)
17
9
(iii)
19
11
(iv)
19
9
(v)
7
3
Question
15
15.
Convert the fraction
521
18
to non-terminating recurring decimal
(i)
28.9
4
(ii)
289.
4
(iii)
2894.
4
(iv)
2.89
4
(v)
0.289
4
Question
16
16.
Convert the fraction
1
3
to non-terminating recurring decimal
(i)
3.
3
(ii)
0.0
3
(iii)
0.
0
(iv)
0.
3
(v)
33.
3
Question
17
17.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
5760
50
(ii)
2805
32
(iii)
2837
32
(iv)
2805
16
(v)
101
9
Question
18
18.
Which of the following fractions converts to a terminating decimal?
(i)
2
33
(ii)
2700
160
(iii)
1
54
(iv)
94
9
(v)
1
3
Question
19
19.
Which of the following is an irrational number?
(i)
7
18
(ii)
30.5926
(iii)
26
(iv)
3
(v)
√
13
Question
20
20.
Which of the following is a rational number?
(i)
2
10
(ii)
3
√
60
(iii)
3
√
83
(iv)
3
√
87
(v)
√
12
Question
21
21.
Express
7
6
as a decimal correct to 2 decimal places
(i)
0.12
(ii)
1.27
(iii)
0.97
(iv)
11.67
(v)
1.17
Question
22
22.
Express
19
6
as a decimal correct to 2 decimal places
(i)
0.32
(ii)
2.97
(iii)
3.27
(iv)
31.67
(v)
3.17
Question
23
23.
Express
4
37
as a decimal correct to 2 decimal places
(i)
0.11
(ii)
0.21
(iii)
1.08
(iv)
0.01
(v)
-0.09
Question
24
24.
Express
37
92
as a decimal correct to 2 decimal places
(i)
4.02
(ii)
0.4
(iii)
0.2
(iv)
0.04
(v)
0.5
Question
25
25.
Express
3
10
as a decimal correct to 1 decimal places
(i)
0.1
(ii)
0.4
(iii)
0
(iv)
3
(v)
0.3
Question
26
26.
Express
73
100
as a decimal correct to 2 decimal places
(i)
7.3
(ii)
0.07
(iii)
0.53
(iv)
0.73
(v)
0.83
Question
27
27.
Express
107
1000
as a decimal correct to 3 decimal places
(i)
0.107
(ii)
0.011
(iii)
0.207
(iv)
-0.093
(v)
1.07
Question
28
28.
Express
5971
10000
as a decimal correct to 4 decimal places
(i)
0.3971
(ii)
0.5971
(iii)
0.0597
(iv)
5.971
(v)
0.6971
Question
29
29.
5.6 =
(i)
28
5
(ii)
560
(iii)
56
(iv)
7
125
(v)
14
25
Question
30
30.
1.8 =
(i)
18
(ii)
180
(iii)
9
50
(iv)
9
500
(v)
9
5
Question
31
31.
4.38 =
(i)
219
5
(ii)
219
500
(iii)
438
(iv)
219
50
(v)
219
5000
Question
32
32.
5.907 =
(i)
5907
10
(ii)
5907
10000
(iii)
5907
100000
(iv)
5907
100
(v)
5907
1000
Question
33
33.
7.6 =
(i)
19
250
(ii)
76
(iii)
38
5
(iv)
19
25
(v)
760
Question
34
34.
8.11 =
(i)
811
100
(ii)
811
10000
(iii)
811
(iv)
811
10
(v)
811
1000
Question
35
35.
20.40 =
(i)
51
250
(ii)
102
5
(iii)
51
25
(iv)
204
(v)
2040
Question
36
36.
10.958 =
(i)
5479
500
(ii)
5479
50
(iii)
5479
50000
(iv)
5479
5000
(v)
5479
5
Question
37
37.
Express
5
4
as a decimal correct to 4 decimal places
(i)
1.45
(ii)
1.15
(iii)
1.25
(iv)
1.05
(v)
1.35
Question
38
38.
Express
76
21
as a decimal correct to 2 decimal places
(i)
3.72
(ii)
3.52
(iii)
3.42
(iv)
3.82
(v)
3.62
Question
39
39.
Express
23
37
as a decimal correct to 3 decimal places
(i)
0.622
(ii)
0.822
(iii)
0.722
(iv)
0.522
(v)
0.422
Question
40
40.
Express
78
97
as a decimal correct to 4 decimal places
(i)
0.9041
(ii)
0.8041
(iii)
0.7041
(iv)
0.6041
(v)
1.0041
Assignment Key
1) (ii)
2) (ii)
3) (i)
4) (iv)
5) (i)
6) (i)
7) (ii)
8) (iii)
9) (i)
10) (iv)
11) (v)
12) (v)
13) (ii)
14) (iv)
15) (i)
16) (iv)
17) (v)
18) (ii)
19) (v)
20) (i)
21) (v)
22) (v)
23) (i)
24) (ii)
25) (v)
26) (iv)
27) (i)
28) (ii)
29) (i)
30) (v)
31) (iv)
32) (v)
33) (iii)
34) (i)
35) (ii)
36) (i)
37) (iii)
38) (v)
39) (i)
40) (ii)