EduSahara™ Assignment
Name : Recurring and Non-recurring decimals
Chapter : Decimals
Grade : ICSE Grade VII
License : Non Commercial Use
Question
1
1.
Find the period of the recurring decimal
20.
4
(i)
0
(ii)
4
(iii)
40
(iv)
2
(v)
1
Question
2
2.
Find the period of the recurring decimal
19.29629629629629...
(i)
3
(ii)
29
(iii)
2960
(iv)
4
(v)
296
Question
3
3.
Find the periodicity of the recurring decimal
5.
962
(i)
2
(ii)
3
(iii)
962
(iv)
1
(v)
4
Question
4
4.
Find the periodicity of the recurring decimal
20.48148148148148...
(i)
481
(ii)
2
(iii)
1
(iv)
3
(v)
4
Question
5
5.
The recurring part of the decimal
3.0
5
is
(i)
5
(ii)
505
(iii)
3.05
(iv)
553
(v)
55
Question
6
6.
The recurring part of the decimal
11.62962962962962...
is
(i)
629629
(ii)
629
(iii)
11.629
(iv)
62961
(v)
6296629
Question
7
7.
Convert the non-terminating recurring decimal
30.
259
to rational number
(i)
815
27
(ii)
91
3
(iii)
817
27
(iv)
817
25
(v)
817
29
Question
8
8.
Convert the non-terminating recurring decimal
7.88888888888888...
to rational number
(i)
71
9
(ii)
73
9
(iii)
71
11
(iv)
71
7
(v)
23
3
Question
9
9.
Convert the fraction
418
27
to non-terminating recurring decimal
(i)
1.5
481
(ii)
0.15
481
(iii)
154.
814
(iv)
15.
481
(v)
1548.
148
Question
10
10.
Convert the fraction
643
21
to non-terminating recurring decimal
(i)
30.
619047
(ii)
0.30
619047
(iii)
3061.
904761
(iv)
306.
190476
(v)
3.0
619047
Question
11
11.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
125
9
(ii)
396
1
(iii)
3960
20
(iv)
1920
128
(v)
199
1
Question
12
12.
Which of the following fractions converts to a terminating decimal?
(i)
146
9
(ii)
73
45
(iii)
1872
64
(iv)
73
63
(v)
359
18
Question
13
13.
Which of the following is a pure recurring decimal?
(i)
1.38888888888888...
(ii)
7.74074074074074...
(iii)
19.94444444444444...
(iv)
20.94444444444444...
(v)
1.94444444444444...
Question
14
14.
Which of the following is a mixed recurring decimal?
(i)
3.25925925925925...
(ii)
12.11111111111111...
(iii)
13.95238095238095...
(iv)
16.05555555555555...
(v)
11.44444444444444...
Question
15
15.
Find the period of the recurring decimal
17.3
8
(i)
8
(ii)
2
(iii)
80
(iv)
0
(v)
1
Question
16
16.
Find the period of the recurring decimal
15.77777777777777...
(i)
1
(ii)
0
(iii)
2
(iv)
7
(v)
70
Question
17
17.
Find the periodicity of the recurring decimal
8.
1
(i)
-1
(ii)
2
(iii)
1
(iv)
0
Question
18
18.
Find the periodicity of the recurring decimal
20.29629629629629...
(i)
4
(ii)
3
(iii)
2
(iv)
1
(v)
296
Question
19
19.
The recurring part of the decimal
20.7
2
is
(i)
20.72
(ii)
22
(iii)
222
(iv)
272
(v)
2
Question
20
20.
The recurring part of the decimal
3.22222222222222...
is
(i)
22
(ii)
223
(iii)
3.2
(iv)
2
(v)
222
Question
21
21.
Convert the non-terminating recurring decimal
21.2
7
to rational number
(i)
383
16
(ii)
127
6
(iii)
385
18
(iv)
383
20
(v)
383
18
Question
22
22.
Convert the non-terminating recurring decimal
0.33333333333333...
to rational number
(i)
1
3
(ii)
(
-1
3
)
(iii)
1
(iv)
1
5
Question
23
23.
Convert the fraction
185
9
to non-terminating recurring decimal
(i)
2055.
5
(ii)
20.
5
(iii)
205.
5
(iv)
0.20
5
(v)
2.0
5
Question
24
24.
Convert the fraction
80
27
to non-terminating recurring decimal
(i)
29.
629
(ii)
2.
962
(iii)
296.
296
(iv)
0.
296
(v)
0.0
296
Question
25
25.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
429
4
(ii)
103
9
(iii)
425
2
(iv)
3400
32
(v)
2160
160
Question
26
26.
Which of the following fractions converts to a terminating decimal?
(i)
1870
64
(ii)
359
18
(iii)
311
18
(iv)
311
99
(v)
311
360
Question
27
27.
Which of the following is a pure recurring decimal?
(i)
18.81481481481481...
(ii)
0.43333333333333...
(iii)
8.38888888888888...
(iv)
19.94444444444444...
Question
28
28.
Which of the following is a mixed recurring decimal?
(i)
28.88888888888888...
(ii)
19.22222222222222...
(iii)
13.72222222222222...
(iv)
7.25925925925925...
(v)
11.47619047619047...
Assignment Key
1) (ii)
2) (v)
3) (ii)
4) (iv)
5) (i)
6) (ii)
7) (iii)
8) (i)
9) (iv)
10) (i)
11) (i)
12) (iii)
13) (ii)
14) (iv)
15) (i)
16) (iv)
17) (iii)
18) (ii)
19) (v)
20) (iv)
21) (v)
22) (i)
23) (ii)
24) (ii)
25) (ii)
26) (i)
27) (i)
28) (iii)