EduSahara™ Assignment
Name : Multiplication of Real Numbers
Chapter : Number Systems
Grade : CBSE Grade IX
License : Non Commercial Use
Question
1
1.
4
√
9
✕
5
√
2
=
(i)
√
7197
(ii)
4
√
7200
(iii)
√
7202
(iv)
√
7200
(v)
7200
Question
2
2.
7
√
2
✕
8
√
8
=
(i)
222
(ii)
223
(iii)
226
(iv)
224
(v)
225
Question
3
3.
(
√
3
+
√
2
)
✕
(
−
3
√
7
+
5
√
9
)
=
(i)
(
−
3
√
21
−
3
√
14
+
15
√
3
+
15
√
2
)
(ii)
(
−
3
√
21
−
3
√
14
+
15
4
√
3
+
15
√
2
)
(iii)
(
−
3
√
21
−
3
4
√
14
+
15
√
3
+
15
√
2
)
(iv)
(
−
3
√
21
−
3
√
14
+
15
√
3
+
15
√
5
)
(v)
(
−
3
√
19
−
3
√
14
+
15
√
3
+
15
√
2
)
Question
4
4.
13
√
8
✕
13
√
2
=
(i)
11
√
16
(ii)
13
√
16
(iii)
13
√
14
(iv)
15
√
16
(v)
13
√
19
Question
5
5.
2
√
6
✕
2
√
8
=
(i)
√
771
(ii)
4
√
768
(iii)
√
766
(iv)
768
(v)
√
768
Question
6
6.
7
√
3
✕
(
−
4
√
2
)
=
(i)
(
−
28
4
√
6
)
(ii)
(
−
28
√
4
)
(iii)
(
−
28
√
6
)
(iv)
(
−
28
√
9
)
(v)
(
−
168
)
Question
7
7.
(
−
8
√
6
+
3
√
2
)
✕
(
−
8
√
2
+
√
6
)
=
(i)
(
134
−
96
)
(ii)
(
134
√
6
−
96
)
(iii)
(
134
√
3
−
95
)
(iv)
(
134
√
3
−
96
)
(v)
(
134
√
3
−
97
)
Question
8
8.
√
2
✕
√
10
=
(i)
√
20
(ii)
√
22
(iii)
20
(iv)
√
18
(v)
4
√
20
Assignment Key
1) (iv)
2) (iv)
3) (i)
4) (ii)
5) (v)
6) (iii)
7) (iv)
8) (i)
