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Byju's Answer
Standard VII
Mathematics
Inter Conversion between Standard and Normal Forms
10×3×5=
Question
(10×3)×5=
A
10×(3×5)
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B
10×(3+5)
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C
10+3+5
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D
10+(3×5)
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Solution
The correct option is
A
10×(3×5)
Associative property of multiplication holds good for whole numbers
∴
(10
×
3)
×
5 = 10
×
(3
×
5)
Suggest Corrections
0
Similar questions
Q.
Find the number from each of the following expanded forms:
(i) 7
× 10
4
+ 6
× 10
3
+ 0
× 10
2
+ 4
× 10
1
+ 5
× 10
0
(ii) 5
× 10
5
+ 4
× 10
4
+ 2
× 10
3
+ 3
× 10
0
(iii) 9
× 10
5
+ 5
× 10
2
+ 3
× 10
1
(iv) 3
× 10
4
+ 4
× 10
2
+ 5
× 10
0
Q.
Simplify:
(i)
25
×
t
−
4
5
−
3
×
10
×
t
−
8
(ii)
3
−
5
×
10
−
5
×
125
5
−
7
×
6
−
5
Q.
Simplify.(i)
25
×
t
−
4
5
−
3
×
10
×
t
−
8
,
t
≠
0
, (ii)
3
−
5
×
10
−
5
×
125
5
−
7
×
6
−
5
Q.
(10×3)×5=
Q.
Find the sum of the series
3
⋅
5
5
⋅
10
+
3
⋅
5
⋅
7
5
⋅
10
⋅
15
+
3
⋅
5
⋅
7
⋅
9
5
⋅
10
⋅
15
⋅
20
+
.
.
.
.
.
∞
.
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Standard VII Mathematics
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