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
81
✕
81
is

(i)

6561
(ii)

6560
(iii)

6563
(iv)

6562
(v)

6558

Question 2

2.

The value of
50

1
3
✕
50

1
3
is

(i)

2533

4
7
(ii)

2533

2
9
(iii)

2533

4
9
(iv)

2533

4
11
(v)

2533

2
3

Question 3

3.

The value of
394
✕
394
is

(i)

155235
(ii)

155238
(iii)

155233
(iv)

155236
(v)

155237

Question 4

4.

The value of
49

2
3
✕
49

2
3
is

(i)

2467
(ii)

2466

7
9
(iii)

2466

7
11
(iv)

2466

5
9

Question 5

5.

The value of
24
✕
16
is

(i)

386
(ii)

382
(iii)

385
(iv)

384
(v)

383

Question 6

6.

The value of
81

1
2
✕
78

1
2
is

(i)

6397

3
4
(ii)

6397

1
4
(iii)

6398

1
2
(iv)

6398

1
4
(v)

6397

1
2

Question 7

7.

The value of
402
✕
408
is

(i)

164018
(ii)

164014
(iii)

164016
(iv)

164015
(v)

164017

Question 8

8.

The value of
800

3
4
✕
801

1
3
is

(i)

641668

1
3
(ii)

641667
(iii)

641667

2
3
(iv)

641669
(v)

641667

2
5

Question 9

9.

The value of
65
✕
62
is

(i)

4031
(ii)

4028
(iii)

4029
(iv)

4030
(v)

4033

Question 10

10.

The value of
29

3
4
✕
29

1
3
is

(i)

872
(ii)

874
(iii)

872

2
5
(iv)

873

1
3
(v)

872

2
3

Question 11

11.

The value of
72
✕
61
is

(i)

4390
(ii)

4392
(iii)

4393
(iv)

4394
(v)

4391

Question 12

12.

The value of
700

2
3
✕
699

2
3
is

(i)

490233

1
3
(ii)

490232

8
9
(iii)

490233

1
11
(iv)

490233

1
7
(v)

490233

1
9

Question 13

13.

Evaluate :
980 2
−
20 2

(i)

9600000
(ii)

960000
(iii)

960980
(iv)

96000
(v)

960020

Assignment Key