EduSahara™ Assignment
Name : Finding Product of Numbers Using Identities
Chapter : Expansions
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The value of
89
✕
89
is
(i)
7921
(ii)
7920
(iii)
7918
(iv)
7924
(v)
7922
Question
2
2.
The value of
90
2
3
✕
90
2
3
is
(i)
8220
2
9
(ii)
8220
2
3
(iii)
8220
4
9
(iv)
8220
4
7
(v)
8220
4
11
Question
3
3.
The value of
599
✕
599
is
(i)
358802
(ii)
358801
(iii)
358800
(iv)
358798
(v)
358803
Question
4
4.
The value of
28
2
3
✕
28
2
3
is
(i)
821
5
9
(ii)
821
7
11
(iii)
822
(iv)
821
7
9
Question
5
5.
The value of
97
✕
83
is
(i)
8054
(ii)
8052
(iii)
8048
(iv)
8051
(v)
8050
Question
6
6.
The value of
100
1
3
✕
99
2
3
is
(i)
9999
8
9
(ii)
9999
2
3
(iii)
10000
1
9
(iv)
10000
1
7
(v)
9999
8
11
Question
7
7.
The value of
89
✕
87
is
(i)
7745
(ii)
7744
(iii)
7741
(iv)
7742
(v)
7743
Question
8
8.
The value of
21
1
2
✕
20
3
4
is
(i)
446
1
10
(ii)
445
7
8
(iii)
446
1
6
(iv)
446
1
8
(v)
446
3
8
Question
9
9.
The value of
597
✕
595
is
(i)
355214
(ii)
355217
(iii)
355212
(iv)
355216
(v)
355215
Question
10
10.
The value of
79
1
3
✕
79
1
4
is
(i)
6286
5
6
(ii)
6287
1
6
(iii)
6287
1
4
(iv)
6287
1
8
(v)
6287
1
2
Question
11
11.
The value of
46
✕
32
is
(i)
1473
(ii)
1471
(iii)
1474
(iv)
1472
(v)
1470
Question
12
12.
The value of
900
3
4
✕
899
2
3
is
(i)
810374
1
4
(ii)
810375
1
2
(iii)
810374
1
2
(iv)
810374
3
4
(v)
810375
1
4
Assignment Key
1) (i)
2) (iii)
3) (ii)
4) (iv)
5) (iv)
6) (i)
7) (v)
8) (iv)
9) (v)
10) (ii)
11) (iv)
12) (iv)
