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
66
✕
66
is

(i)

4355
(ii)

4358
(iii)

4357
(iv)

4356
(v)

4353

Question 2

2.

The value of
91

1
2
✕
91

1
2
is

(i)

8372

3
4
(ii)

8372

1
6
(iii)

8372

1
2
(iv)

8371

3
4
(v)

8372

1
4

Question 3

3.

The value of
591
✕
591
is

(i)

349281
(ii)

349279
(iii)

349282
(iv)

349283
(v)

349280

Question 4

4.

The value of
19

1
3
✕
19

1
3
is

(i)

373

5
9
(ii)

373

7
11
(iii)

374
(iv)

373

7
9

Question 5

5.

The value of
105
✕
95
is

(i)

9975
(ii)

9977
(iii)

9973
(iv)

9976
(v)

9974

Question 6

6.

The value of
20

3
4
✕
19

1
4
is

(i)

399

7
18
(ii)

399

5
16
(iii)

399

1
2
(iv)

399

9
16
(v)

399

7
16

Question 7

7.

The value of
904
✕
905
is

(i)

818121
(ii)

818119
(iii)

818123
(iv)

818118
(v)

818120

Question 8

8.

The value of
81

1
2
✕
80

2
3
is

(i)

6574

1
3
(ii)

6575
(iii)

6573

2
3
(iv)

6574

1
5

Question 9

9.

The value of
18
✕
19
is

(i)

340
(ii)

342
(iii)

345
(iv)

341
(v)

343

Question 10

10.

The value of
78

2
3
✕
79

3
4
is

(i)

6273

2
5
(ii)

6275
(iii)

6273
(iv)

6273

2
3
(v)

6274

1
3

Question 11

11.

The value of
45
✕
31
is

(i)

1396
(ii)

1398
(iii)

1395
(iv)

1392
(v)

1394

Question 12

12.

The value of
60

1
2
✕
59

3
4
is

(i)

3614

7
10
(ii)

3615

1
6
(iii)

3615

1
8
(iv)

3614

5
8
(v)

3614

7
8

Question 13

13.

Evaluate :
980 2
−
20 2

(i)

9600000
(ii)

960000
(iii)

960980
(iv)

96000
(v)

960020

Question 14

14.

Find
603 3

(i)

219256207
(ii)

219256247
(iii)

219256237
(iv)

219256217
(v)

219256227

Question 15

15.

Find
492 3

(i)

119095498
(ii)

119095478
(iii)

119095488
(iv)

119095468
(v)

119095508

Question 16

16.

(i)

(-27000)
(ii)

8000
(iii)

27000
(iv)

(-8000)
(v)

(-11250)

Question 17

17.

(i)

21.952
(ii)

-85.184
(iii)

85.184
(iv)

-33.264
(v)

-21.952

Assignment Key