EduSahara™ Assignment
Name : Multiplication of Real Numbers
Chapter : Number Systems
Grade : CBSE Grade IX
License : Non Commercial Use
Question
1
1.
5
√
6
✕
4
√
5
=
(i)
4
√
12000
(ii)
√
12002
(iii)
√
12000
(iv)
12000
(v)
√
11998
Question
2
2.
(
−
5
√
3
)
✕
(
−
4
√
5
)
=
(i)
20
4
√
15
(ii)
20
√
18
(iii)
300
(iv)
20
√
15
(v)
20
√
13
Question
3
3.
(
−
18
√
2
−
9
√
3
)
✕
(
5
√
2
−
5
√
3
)
=
(i)
(
−
43
+
45
√
6
)
(ii)
(
−
45
+
45
4
√
6
)
(iii)
(
−
45
+
45
√
6
)
(iv)
(
−
47
+
45
√
6
)
(v)
(
−
45
+
270
)
Question
4
4.
6
√
9
✕
6
√
3
=
(i)
6
√
27
(ii)
6
√
29
(iii)
8
√
27
(iv)
4
√
27
(v)
6
√
24
Question
5
5.
3
√
8
✕
5
√
5
=
(i)
4
√
9000
(ii)
9000
(iii)
√
9000
(iv)
√
9002
(v)
√
8998
Question
6
6.
2
√
6
✕
(
−
3
√
5
)
=
(i)
(
−
6
√
28
)
(ii)
(
−
180
)
(iii)
(
−
6
4
√
30
)
(iv)
(
−
6
√
30
)
(v)
(
−
6
√
33
)
Question
7
7.
(
6
√
3
−
8
√
7
)
✕
(
9
√
9
+
4
√
2
)
=
(i)
(
162
√
3
−
216
4
√
7
+
24
√
6
−
32
√
14
)
(ii)
(
162
√
3
−
216
√
7
+
24
√
6
−
32
√
14
)
(iii)
(
162
√
3
−
216
√
7
+
24
√
6
−
32
√
17
)
(iv)
(
162
−
216
√
7
+
24
√
6
−
32
√
14
)
(v)
(
162
√
3
−
216
√
7
+
24
4
√
6
−
32
√
14
)
Question
8
8.
19
√
7
✕
19
√
2
=
(i)
19
√
17
(ii)
19
√
14
(iii)
19
√
12
(iv)
17
√
14
(v)
21
√
14
Assignment Key
1) (iii)
2) (iv)
3) (iii)
4) (i)
5) (iii)
6) (iv)
7) (ii)
8) (ii)
