EduSahara™ Assignment
Name : Product of Numbers using Algebraic Identities
Chapter : Polynomials
Grade : CBSE Grade IX
License : Non Commercial Use
Question
1
1.
The value of
91
✕
91
is
(i)
8281
(ii)
8284
(iii)
8279
(iv)
8280
(v)
8282
Question
2
2.
The value of
200
1
4
✕
200
1
4
is
(i)
40100
1
16
(ii)
40100
1
14
(iii)
40099
15
16
(iv)
40100
3
16
(v)
40100
1
18
Question
3
3.
The value of
8
✕
8
is
(i)
62
(ii)
67
(iii)
64
(iv)
65
(v)
63
Question
4
4.
The value of
89
1
3
✕
89
1
3
is
(i)
7980
4
11
(ii)
7980
2
9
(iii)
7980
2
3
(iv)
7980
4
7
(v)
7980
4
9
Question
5
5.
The value of
65
✕
55
is
(i)
3575
(ii)
3573
(iii)
3574
(iv)
3576
(v)
3577
Question
6
6.
The value of
900
1
3
✕
899
2
3
is
(i)
810000
1
9
(ii)
810000
1
7
(iii)
809999
2
3
(iv)
809999
8
11
(v)
809999
8
9
Question
7
7.
The value of
49
✕
48
is
(i)
2352
(ii)
2355
(iii)
2349
(iv)
2351
(v)
2353
Question
8
8.
The value of
40
1
3
✕
40
2
3
is
(i)
1640
2
11
(ii)
1640
2
7
(iii)
1640
2
9
(iv)
1640
4
9
(v)
1640
Question
9
9.
The value of
55
✕
59
is
(i)
3245
(ii)
3246
(iii)
3243
(iv)
3244
(v)
3247
Question
10
10.
The value of
99
1
2
✕
98
1
2
is
(i)
9800
3
4
(ii)
9801
1
2
(iii)
9801
1
4
(iv)
9800
1
2
(v)
9800
1
4
Question
11
11.
The value of
206
✕
191
is
(i)
39348
(ii)
39347
(iii)
39344
(iv)
39346
(v)
39345
Question
12
12.
The value of
900
3
4
✕
899
3
4
is
(i)
810449
11
16
(ii)
810449
13
14
(iii)
810449
13
16
(iv)
810449
13
18
(v)
810449
15
16
Question
13
13.
Evaluate :
990
2
−
10
2
(i)
9800000
(ii)
980010
(iii)
980000
(iv)
980990
(v)
98000
Question
14
14.
Find
909
3
(i)
751089449
(ii)
751089439
(iii)
751089419
(iv)
751089429
(v)
751089409
Question
15
15.
Find
494
3
(i)
120553774
(ii)
120553784
(iii)
120553804
(iv)
120553794
(v)
120553764
Question
16
16.
Find the value of
60
3
+
20
3
−
80
3
(i)
(-64000)
(ii)
(-288000)
(iii)
(-1728000)
(iv)
1728000
(v)
64000
Question
17
17.
Find the value of
4.6
3
+
5.2
3
−
9.8
3
(i)
-703.248
(ii)
-778.688
(iii)
778.688
(iv)
1124.864
(v)
-1124.864
Assignment Key
1) (i)
2) (i)
3) (iii)
4) (v)
5) (i)
6) (v)
7) (i)
8) (iii)
9) (i)
10) (i)
11) (iv)
12) (iii)
13) (iii)
14) (iv)
15) (ii)
16) (ii)
17) (i)
