EduSahara™ Worksheet

EduSahara™ Assignment

Name : Product of Numbers using Algebraic Identities

Chapter : Special Products and Expansions

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

The value of
304
✕
304
is

(i)

92415
(ii)

92413
(iii)

92417
(iv)

92419
(v)

92416

Question 2

2.

The value of
20

3
4
✕
20

3
4
is

(i)

430

9
16
(ii)

430

11
16
(iii)

430

1
2
(iv)

430

9
14
(v)

430

7
16

Question 3

3.

The value of
796
✕
796
is

(i)

633617
(ii)

633616
(iii)

633618
(iv)

633615
(v)

633614

Question 4

4.

The value of
98

2
3
✕
98

2
3
is

(i)

9734

8
9
(ii)

9735

1
9
(iii)

9735

1
3
(iv)

9735

1
11
(v)

9735

1
7

Question 5

5.

The value of
509
✕
491
is

(i)

249920
(ii)

249918
(iii)

249917
(iv)

249921
(v)

249919

Question 6

6.

The value of
800

2
3
✕
799

1
3
is

(i)

639999

5
11
(ii)

639999

5
7
(iii)

639999

1
3
(iv)

639999

5
9
(v)

639999

7
9

Question 7

7.

The value of
55
✕
53
is

(i)

2914
(ii)

2917
(iii)

2915
(iv)

2916
(v)

2913

Question 8

8.

The value of
91

1
3
✕
90

1
4
is

(i)

8242

5
6
(ii)

8243

1
4
(iii)

8242

1
2
(iv)

8243

1
6
(v)

8242

5
8

Question 9

9.

The value of
58
✕
54
is

(i)

3129
(ii)

3134
(iii)

3131
(iv)

3132
(v)

3133

Question 10

10.

The value of
28

1
2
✕
28

2
3
is

(i)

816
(ii)

814
(iii)

817
(iv)

818
(v)

819

Question 11

11.

The value of
82
✕
74
is

(i)

6067
(ii)

6065
(iii)

6071
(iv)

6068
(v)

6069

Question 12

12.

The value of
51

1
3
✕
49

1
2
is

(i)

2540
(ii)

2539
(iii)

2542
(iv)

2541
(v)

2544

Question 13

13.

Evaluate :
985 2
−
15 2

(i)

970000
(ii)

970985
(iii)

97000
(iv)

9700000
(v)

970015

Question 14

14.

Find
305 3

(i)

28372615
(ii)

28372605
(iii)

28372635
(iv)

28372645
(v)

28372625

Question 15

15.

Find
193 3

(i)

7189077
(ii)

7189047
(iii)

7189037
(iv)

7189067
(v)

7189057

Question 16

16.

(i)

(-512000)
(ii)

(-64000)
(iii)

512000
(iv)

64000
(v)

(-144000)

Question 17

17.

(i)

-1259.712
(ii)

1259.712
(iii)

-8
(iv)

-103.68
(v)

8

Assignment Key