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
809
✕
809
is

(i)

654482
(ii)

654480
(iii)

654479
(iv)

654484
(v)

654481

Question 2

2.

The value of
51

1
3
✕
51

1
3
is

(i)

2635

1
3
(ii)

2635

1
11
(iii)

2635

1
9
(iv)

2635

1
7
(v)

2634

8
9

Question 3

3.

The value of
192
✕
192
is

(i)

36865
(ii)

36863
(iii)

36864
(iv)

36862
(v)

36866

Question 4

4.

The value of
299

1
2
✕
299

1
2
is

(i)

89699

3
4
(ii)

89700

3
4
(iii)

89700

1
4
(iv)

89700

1
6
(v)

89700

1
2

Question 5

5.

The value of
72
✕
68
is

(i)

4897
(ii)

4899
(iii)

4896
(iv)

4894
(v)

4895

Question 6

6.

The value of
50

1
2
✕
49

1
2
is

(i)

2499

3
4
(ii)

2499

1
2
(iii)

2500

1
4
(iv)

2500

1
2
(v)

2499

1
4

Question 7

7.

The value of
207
✕
209
is

(i)

43263
(ii)

43264
(iii)

43266
(iv)

43262
(v)

43260

Question 8

8.

The value of
40

1
3
✕
40

1
3
is

(i)

1626

7
11
(ii)

1626

5
9
(iii)

1626

7
9
(iv)

1627

Question 9

9.

The value of
26
✕
21
is

(i)

547
(ii)

543
(iii)

549
(iv)

545
(v)

546

Question 10

10.

The value of
89

2
3
✕
88

2
3
is

(i)

7950

2
3
(ii)

7950

4
11
(iii)

7950

2
9
(iv)

7950

4
9
(v)

7950

4
7

Question 11

11.

The value of
39
✕
23
is

(i)

897
(ii)

895
(iii)

898
(iv)

896
(v)

899

Question 12

12.

The value of
801

1
2
✕
798

1
2
is

(i)

639998

1
2
(ii)

639997

3
4
(iii)

639997

1
2
(iv)

639997

1
4
(v)

639998

1
4

Question 13

13.

Evaluate :
980 2
−
20 2

(i)

9600000
(ii)

960980
(iii)

960000
(iv)

96000
(v)

960020

Assignment Key