EduSahara™ Assignment
Name : Simplification
Chapter : Exponents
Grade : SSC Grade VII
License : Non Commercial Use
Question
1
1.
Simplify the expression
2
3
✕
2
3
✕
2
3
(i)
2
10
(ii)
2
8
(iii)
2
9
(iv)
4
9
(v)
2
7
Question
2
2.
Simplify the expression
3
-8
✕
3
-8
✕
3
-8
(i)
6
-24
(ii)
3
-24
(iii)
3
-23
(iv)
3
-25
(v)
1
Question
3
3.
Simplify the expression
(-4)
6
✕
(-4)
6
(i)
(-4)
12
(ii)
(-4)
13
(iii)
(-4)
11
(iv)
(-7)
12
(v)
(-2)
12
Question
4
4.
Simplify the expression
(-2)
-9
✕
(-2)
-9
✕
(-2)
-9
(i)
(-5)
-27
(ii)
(-2)
-26
(iii)
(-2)
-27
(iv)
(-2)
-24
(v)
(-2)
-28
Question
5
5.
Simplify the expression
(
8
7
)
2
✕
(
8
7
)
2
(i)
(
12
5
)
2
(ii)
(
16
7
)
(-1)
(iii)
(
16
7
)
4
(iv)
(
16
7
)
2
(v)
(
20
9
)
2
Question
6
6.
Simplify the expression
(
-9
2
)
7
✕
(
-9
2
)
7
(i)
10
-9
(ii)
7
-8
(iii)
7
-10
(iv)
7
-9
(v)
4
-9
Question
7
7.
Simplify the expression
(-9)
8
✕
(-9)
8
✕
(-9)
8
(i)
(-11)
24
(ii)
(-9)
24
(iii)
(-6)
24
(iv)
(-9)
23
(v)
(-9)
25
Question
8
8.
Simplify the expression
(-3)
-9
✕
(-3)
-9
✕
(-3)
-9
(i)
(-5)
-27
(ii)
(-3)
-28
(iii)
(-3)
-27
(iv)
(-3)
-26
(v)
(-3)
-24
Question
9
9.
Simplify the expression
4
(
8
5
)
✕
4
(
8
5
)
✕
4
(
8
5
)
(i)
13
(
8
5
)
(ii)
11
(
8
5
)
(iii)
2
12
(iv)
12
(
8
5
)
(v)
12
(
6
5
)
Question
10
10.
Simplify the expression
-7
(
7
6
)
✕
-7
(
7
6
)
(i)
-13
(
7
6
)
(ii)
-14
(
3
2
)
(iii)
-14
(
7
6
)
(iv)
-14
(
5
6
)
(v)
-15
(
7
6
)
Question
11
11.
Simplify the expression
2
(
-9
2
)
✕
2
(
-9
2
)
(i)
5
(
-9
2
)
(ii)
4
(
-9
2
)
(iii)
3
(
-9
2
)
(iv)
4
(
-11
2
)
(v)
4
(
-7
2
)
Question
12
12.
Simplify the expression
-6
(
-2
3
)
✕
-6
(
-2
3
)
✕
-6
(
-2
3
)
(i)
-19
(
-2
3
)
(ii)
-18
(
-4
3
)
(iii)
-17
(
-2
3
)
(iv)
-18
(
-2
3
)
(v)
-15
(
-2
3
)
Question
13
13.
Simplify the expression
(
9/8
)
(
8
5
)
✕
(
9/8
)
(
8
5
)
✕
(
9/8
)
(
8
5
)
(i)
(
7/2
)
(
8
5
)
(ii)
(
27/8
)
(
6
5
)
(iii)
(
33/10
)
(
8
5
)
(iv)
(
27/8
)
(
8
5
)
(v)
(
27
8
)
2
Question
14
14.
Simplify the expression
-5
(
7
5
)
✕
-5
(
7
5
)
✕
-5
(
7
5
)
(i)
-14
(
7
5
)
(ii)
-15
(
9
5
)
(iii)
-15
(
7
5
)
(iv)
-16
(
7
5
)
(v)
1
Question
15
15.
Simplify the expression
(
9/7
)
(
-8
7
)
✕
(
9/7
)
(
-8
7
)
(i)
(
18/7
)
(
-10
7
)
(ii)
(
18/7
)
(
-8
7
)
(iii)
(
14/5
)
(
-8
7
)
(iv)
(
18/7
)
(
-6
7
)
(v)
(
22/9
)
(
-8
7
)
Question
16
16.
Simplify the expression
(
-7/9
)
(
-5
8
)
✕
(
-7/9
)
(
-5
8
)
(i)
(
-14/9
)
(
-5
8
)
(ii)
(
-14/11
)
(
-5
8
)
(iii)
(
-14/9
)
(
-7
8
)
(iv)
(
-14/9
)
(
-3
8
)
(v)
-2
(
-5
8
)
Question
17
17.
Simplify the expression
(
3
2
)
7
✕
(
5
2
)
7
✕
(
6
5
)
7
(i)
(
26
5
)
9
(ii)
(
26
5
)
5
(iii)
(
26
5
)
7
(iv)
(
36
7
)
7
(v)
(
16
3
)
7
Question
18
18.
Simplify the expression
(
-6
5
)
5
✕
(
-2
3
)
5
✕
(
-5
7
)
5
(i)
(
-267
103
)
5
(ii)
(
-275
107
)
5
(iii)
(
-271
105
)
8
(iv)
(
-271
105
)
5
(v)
(
-271
105
)
3
Question
19
19.
Simplify the expression
(
7
4
)
(-4)
✕
(
9
7
)
(-4)
✕
(
9
2
)
(-4)
(i)
(
211
28
)
(-1)
(ii)
(
211
28
)
(-4)
(iii)
(
15
2
)
(-4)
(iv)
(
197
26
)
(-4)
(v)
(
211
28
)
(-7)
Question
20
20.
Simplify the expression
(
-5
4
)
(-3)
✕
(
-9
2
)
(-3)
✕
(-3)
-4
(i)
(
-39
4
)
(-6)
(ii)
(
-21
2
)
(-3)
(iii)
(
-39
4
)
(-1)
(iv)
(
-19
2
)
(-3)
(v)
(
-39
4
)
(-3)
Question
21
21.
Simplify the expression
3
(
9
7
)
✕
6
(
9
7
)
✕
7
(
9
7
)
(i)
17
(
9
7
)
(ii)
15
(
9
7
)
(iii)
16
(
9
7
)
(iv)
1
(v)
16
(
11
7
)
Question
22
22.
Simplify the expression
-9
(
3
2
)
✕
-9
(
3
2
)
(i)
-18
(
3
2
)
(ii)
-17
(
3
2
)
(iii)
-19
(
3
2
)
(iv)
-18
(
1
2
)
(v)
-18
(
5
2
)
Question
23
23.
Simplify the expression
5
(
-4
7
)
✕
2
(
-4
7
)
(i)
7
(
-4
7
)
(ii)
7
(
-2
7
)
(iii)
8
(
-4
7
)
(iv)
6
(
-4
7
)
(v)
7
(
-6
7
)
Question
24
24.
Simplify the expression
-2
(
-7
3
)
✕
-5
(
-7
3
)
(i)
-7
(
-5
3
)
(ii)
-7
(
-7
3
)
(iii)
(-3)
-7
(iv)
-8
(
-7
3
)
(v)
-6
(
-7
3
)
Question
25
25.
Simplify the expression
(
9/5
)
(
5
3
)
✕
(
8/5
)
(
5
3
)
(i)
1
(ii)
(
17/5
)
(
5
3
)
(iii)
(
11/3
)
(
5
3
)
(iv)
(
23/7
)
(
5
3
)
(v)
(
17/5
)
(
7
3
)
Question
26
26.
Simplify the expression
(
-5/6
)
(
8
7
)
✕
(
-3/5
)
(
8
7
)
✕
(
-5/4
)
(
8
7
)
(i)
(
-161/60
)
(
8
7
)
(ii)
(
-165/62
)
(
8
7
)
(iii)
(
-161/60
)
(
10
7
)
(iv)
(
-157/58
)
(
8
7
)
(v)
(
-161/60
)
(
6
7
)
Question
27
27.
Simplify the expression
(
5/4
)
(
-4
7
)
✕
(
9/5
)
(
-4
7
)
✕
(
9/5
)
(
-4
7
)
(i)
(
97/20
)
(
-2
7
)
(ii)
(
89/18
)
(
-4
7
)
(iii)
(
97/20
)
(
-6
7
)
(iv)
(
97/20
)
(
-4
7
)
(v)
(
105/22
)
(
-4
7
)
Question
28
28.
Simplify the expression
(
-8/5
)
(
-7
3
)
✕
(
-6/7
)
(
-7
3
)
(i)
(
-90/37
)
(
-7
3
)
(ii)
(
-86/35
)
(
-5
3
)
(iii)
(
-82/33
)
(
-7
3
)
(iv)
(
-86/35
)
(
-7
3
)
(v)
(
-86
35
)
(-3)
Question
29
29.
Simplify the expression
7
9
✕
6
9
✕
3
9
(i)
126
9
(ii)
128
9
(iii)
123
9
(iv)
126
8
(v)
126
10
Question
30
30.
Simplify the expression
5
-6
✕
3
-6
✕
2
-6
(i)
30
-5
(ii)
30
-6
(iii)
32
-6
(iv)
27
-6
(v)
30
-7
Question
31
31.
Simplify the expression
(-4)
2
✕
(-5)
2
(i)
20
3
(ii)
20
2
(iii)
17
2
(iv)
20
(v)
22
2
Question
32
32.
Simplify the expression
(-5)
-8
✕
(-2)
-8
(i)
8
-8
(ii)
10
-7
(iii)
10
-8
(iv)
10
-9
(v)
13
-8
Question
33
33.
Simplify the expression
7
8
✕
2
8
✕
6
8
(i)
84
9
(ii)
84
7
(iii)
82
8
(iv)
87
8
(v)
84
8
Question
34
34.
Simplify the expression
(
-7
4
)
5
✕
(
-7
4
)
5
(i)
(
-7
4
)
22
(ii)
(
-7
2
)
25
(iii)
(
-7
4
)
25
(iv)
(
-7
6
)
25
(v)
(
-7
4
)
28
Question
35
35.
Simplify the expression
(-5)
3
✕
(-5)
3
(i)
25
4
(ii)
28
3
(iii)
23
3
(iv)
25
2
(v)
25
3
Question
36
36.
Simplify the expression
(
-5
8
)
(-4)
✕
(
-5
8
)
(-5)
✕
(
-5
8
)
(-9)
(i)
(
-5
8
)
(-182)
(ii)
(
-5
8
)
(-178)
(iii)
(
-1
2
)
(-180)
(iv)
(
-5
8
)
(-180)
(v)
(
-5
6
)
(-180)
Question
37
37.
Simplify the expression
4
(
9
8
)
✕
4
(
7
2
)
(i)
4
(
63
16
)
(ii)
4
(
61
16
)
(iii)
3
(
63
16
)
(iv)
5
(
63
16
)
(v)
4
(
65
16
)
Question
38
38.
Simplify the expression
-6
(
9
8
)
✕
-6
(
9
8
)
✕
-6
(
8
5
)
(i)
-6
(
83
40
)
(ii)
-6
(
81
40
)
(iii)
-6
(
79
40
)
(iv)
-7
(
81
40
)
(v)
-5
(
81
40
)
Question
39
39.
Simplify the expression
(-2)
6
✕
6
(
-2
7
)
✕
6
(
-9
8
)
(i)
6
(
-1
2
)
(ii)
7
(
-9
14
)
(iii)
5
(
-9
14
)
(iv)
6
(
-9
14
)
(v)
6
(
-11
14
)
Question
40
40.
Simplify the expression
-7
(
-9
2
)
✕
(-9)
-7
✕
-7
(
-2
7
)
(i)
-7
(
-79
7
)
(ii)
-8
(
-81
7
)
(iii)
-7
(
-81
7
)
(iv)
-7
(
-83
7
)
(v)
-6
(
-81
7
)
Question
41
41.
Simplify the expression
(
5/3
)
(
8
5
)
✕
(
5/3
)
(
9
7
)
(i)
2
2
35
(ii)
(
5
3
)
2
(iii)
(
5/3
)
(
74
35
)
(iv)
(
5/3
)
(
72
35
)
(v)
5
(
72
35
)
Question
42
42.
Simplify the expression
(
-4/7
)
(
8
7
)
✕
(
-4/7
)
(
9
8
)
(i)
(
-4/5
)
(
9
7
)
(ii)
1
(iii)
(
-4/7
)
(
9
7
)
(iv)
(
-4/7
)
(
11
7
)
(v)
(
-4/9
)
(
9
7
)
Question
43
43.
Simplify the expression
(
5/3
)
(
-9
5
)
✕
(
5/3
)
(
-7
8
)
(i)
(
5/3
)
(
63
40
)
(ii)
(
5/3
)
(
13
8
)
(iii)
5
(
63
40
)
(iv)
1
23
40
(v)
(
5/3
)
(
61
40
)
Question
44
44.
Simplify the expression
-9
(
-2
9
)
✕
-9
(
-5
7
)
(i)
-9
(
4
21
)
(ii)
-9
(
10
63
)
(iii)
-10
(
10
63
)
(iv)
-8
(
10
63
)
(v)
-9
(
8
63
)
Question
45
45.
Simplify
(-2)
-2
5
2
(i)
8
-2
(ii)
10
-3
(iii)
10
-2
(iv)
12
-2
(v)
10
-1
Question
46
46.
Simplify
5
2
✕
(-5)
-2
(-3)
2
✕
(-2)
2
(i)
6
-3
(ii)
6
-1
(iii)
6
-2
(iv)
4
-2
(v)
8
-2
Question
47
47.
Simplify
3
2
✕
4
2
✕
(-2)
2
(-4)
2
✕
3
-2
✕
(-2)
-2
(i)
6
5
(ii)
3
4
(iii)
6
3
(iv)
9
4
(v)
6
4
Question
48
48.
Simplify
5
2
✕
(-4)
-2
✕
(-5)
-2
✕
(-5)
-2
5
-2
✕
4
-2
✕
4
2
✕
4
2
(i)
5
-8
(ii)
2
-8
(iii)
2
-7
(iv)
2
-9
(v)
(-1)
-8
Question
49
49.
Simplify
(-4)
2
✕
(-4)
-2
3
-3
✕
5
2
(i)
3
3
5
2
(ii)
3
3
7
2
(iii)
3
3
3
2
(iv)
3
2
5
2
(v)
3
4
5
2
Question
50
50.
Simplify
5
-3
✕
3
2
✕
(-3)
-2
3
-3
✕
(-4)
-2
✕
(-2)
-2
(i)
2
3
(ii)
3
(
14
5
)
(iii)
3
(
12
5
)
(iv)
2
(
12
5
)
(v)
4
(
12
5
)
Question
51
51.
Simplify
5
2
✕
2
2
✕
(-3)
3
2
2
✕
4
2
✕
4
2
✕
(-5)
2
(i)
-2
✕
3
3
2
8
(ii)
-1
✕
3
3
2
6
(iii)
-1
✕
3
3
2
8
(iv)
-1
✕
3
4
2
8
(v)
-1
✕
3
3
4
8
Question
52
52.
Simplify
4
-2
✕
(-3)
-3
✕
(-3)
-2
✕
(-3)
-2
5
-2
✕
5
-3
✕
3
-3
(i)
-1
✕
5
5
2
4
✕
3
4
(ii)
-1
✕
5
4
2
4
✕
3
4
(iii)
-1
✕
5
5
2
4
✕
3
(iv)
-1
✕
5
6
2
4
✕
3
4
(v)
-1
✕
5
5
2
4
✕
6
4
Question
53
53.
Simplify the expression
2
2
✕
2
2
✕
2
2
(i)
2
7
(ii)
5
6
(iii)
2
4
(iv)
2
5
(v)
2
6
Question
54
54.
Simplify the expression
7
-7
✕
7
-7
(i)
7
-15
(ii)
4
-14
(iii)
7
-13
(iv)
9
-14
(v)
7
-14
Question
55
55.
Simplify the expression
(-9)
7
✕
(-9)
7
(i)
(-6)
14
(ii)
(-9)
15
(iii)
(-9)
13
(iv)
(-9)
14
(v)
(-12)
14
Question
56
56.
Simplify the expression
(-7)
-4
✕
(-7)
-4
(i)
(-7)
-9
(ii)
(-9)
-8
(iii)
(-4)
-8
(iv)
(-7)
-8
(v)
(-7)
-7
Assignment Key
1) (iii)
2) (ii)
3) (i)
4) (iii)
5) (iv)
6) (iv)
7) (ii)
8) (iii)
9) (iv)
10) (iii)
11) (ii)
12) (iv)
13) (iv)
14) (iii)
15) (ii)
16) (i)
17) (iii)
18) (iv)
19) (ii)
20) (v)
21) (iii)
22) (i)
23) (i)
24) (ii)
25) (ii)
26) (i)
27) (iv)
28) (iv)
29) (i)
30) (ii)
31) (ii)
32) (iii)
33) (v)
34) (iii)
35) (v)
36) (iv)
37) (i)
38) (ii)
39) (iv)
40) (iii)
41) (iv)
42) (iii)
43) (i)
44) (ii)
45) (iii)
46) (iii)
47) (v)
48) (ii)
49) (i)
50) (iii)
51) (iii)
52) (i)
53) (v)
54) (v)
55) (iv)
56) (iv)
