EduSahara™ Worksheet

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
203
✕
203
is

(i)

41207
(ii)

41210
(iii)

41208
(iv)

41212
(v)

41209

Question 2

2.

The value of
100

2
3
✕
100

2
3
is

(i)

10133

7
11
(ii)

10134
(iii)

10133

7
9
(iv)

10133

5
9

Question 3

3.

The value of
691
✕
691
is

(i)

477481
(ii)

477479
(iii)

477480
(iv)

477482
(v)

477484

Question 4

4.

The value of
19

1
2
✕
19

1
2
is

(i)

380

1
6
(ii)

380

3
4
(iii)

380

1
2
(iv)

380

1
4
(v)

379

3
4

Question 5

5.

The value of
51
✕
49
is

(i)

2496
(ii)

2498
(iii)

2500
(iv)

2502
(v)

2499

Question 6

6.

The value of
601

1
2
✕
598

1
2
is

(i)

359997

1
4
(ii)

359998

1
2
(iii)

359997

3
4
(iv)

359998

1
4
(v)

359997

1
2

Question 7

7.

The value of
804
✕
802
is

(i)

644810
(ii)

644809
(iii)

644807
(iv)

644806
(v)

644808

Question 8

8.

The value of
51

1
2
✕
51

1
2
is

(i)

2651

3
4
(ii)

2652

1
2
(iii)

2652

1
4
(iv)

2652

3
4
(v)

2652

1
6

Question 9

9.

The value of
24
✕
23
is

(i)

552
(ii)

554
(iii)

551
(iv)

553
(v)

550

Question 10

10.

The value of
299

3
4
✕
298

2
3
is

(i)

89525

1
3
(ii)

89524

2
3
(iii)

89526
(iv)

89525

1
5

Question 11

11.

The value of
304
✕
291
is

(i)

88465
(ii)

88466
(iii)

88462
(iv)

88464
(v)

88463

Question 12

12.

The value of
60

1
3
✕
59

1
2
is

(i)

3589

1
2
(ii)

3589

5
6
(iii)

3590

1
6
(iv)

3589

5
8
(v)

3590

1
4

Assignment Key