EduSahara™ Worksheet

EduSahara™ Assignment

Name : Finding Product of Numbers Using Special Products

Chapter : Special Products As Identities

Grade : ICSE Grade VII

License : Non Commercial Use

Question 1

1.

The value of
18
✕
18
is

(i)

326
(ii)

323
(iii)

325
(iv)

322
(v)

324

Question 2

2.

The value of
30

1
4
✕
30

1
4
is

(i)

914

15
16
(ii)

915

1
18
(iii)

915

3
16
(iv)

915

1
14
(v)

915

1
16

Question 3

3.

The value of
396
✕
396
is

(i)

156818
(ii)

156814
(iii)

156817
(iv)

156816
(v)

156815

Question 4

4.

The value of
9

3
4
✕
9

3
4
is

(i)

94

15
16
(ii)

95

1
16
(iii)

95

1
14
(iv)

95

3
16
(v)

95

1
18

Question 5

5.

The value of
14
✕
6
is

(i)

87
(ii)

83
(iii)

81
(iv)

84
(v)

85

Question 6

6.

The value of
801

1
2
✕
798

1
2
is

(i)

639997

1
2
(ii)

639997

3
4
(iii)

639997

1
4
(iv)

639998

1
2
(v)

639998

1
4

Question 7

7.

The value of
41
✕
47
is

(i)

1926
(ii)

1929
(iii)

1927
(iv)

1928
(v)

1925

Question 8

8.

The value of
70

1
4
✕
70

2
3
is

(i)

4964

1
5
(ii)

4964

1
3
(iii)

4963

2
3
(iv)

4965

Question 9

9.

The value of
31
✕
33
is

(i)

1026
(ii)

1024
(iii)

1023
(iv)

1022
(v)

1020

Question 10

10.

The value of
89

1
3
✕
89

3
4
is

(i)

8017

2
5
(ii)

8018

1
3
(iii)

8017

2
3
(iv)

8017
(v)

8019

Question 11

11.

The value of
909
✕
891
is

(i)

809916
(ii)

809918
(iii)

809920
(iv)

809919
(v)

809921

Question 12

12.

The value of
41

1
2
✕
39

2
3
is

(i)

1646

1
2
(ii)

1645

5
6
(iii)

1646

1
8
(iv)

1646

1
4
(v)

1646

1
6

Question 13

13.

Evaluate :
980 2
−
20 2

(i)

9600000
(ii)

960020
(iii)

96000
(iv)

960980
(v)

960000

Assignment Key