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Byju's Answer
Standard VII
Mathematics
Addition and Subtraction of Decimals
2+310+4100= ?...
Question
2
+
3
10
+
4
100
=
?
(a) 2.304
(b) 0.403
(c) 2.34
(d) 2.43
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Solution
2
+
3
10
+
4
100
=
2
+
0
.
3
+
0
.
04
=
2
.
34
Hence, the correct option is (c).
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Similar questions
Q.
Mark (✓) against the correct answer in each of the following:
2
+
3
10
+
4
100
(a) 2.304
(b) 2.403
(c) 2.34
(d) none of these
Q.
Evaluate (using formulae):
2.43
×
2.43
−
2
×
2.43
×
1.67
+
1.67
×
1.67
2.43
−
1.67
Q.
Write each of the following in decimals form:
(i)
40
+
6
+
7
10
+
9
100
(ii)
500
+
70
+
8
+
3
10
+
1
100
+
6
1000
(iii)
700
+
30
+
1
+
8
10
+
4
100
(iv)
600
+
5
+
7
100
+
9
1000
(v)
800
+
5
+
8
10
+
6
1000
(vi)
30
+
9
+
4
100
+
8
1000
Q.
Solve:
2.4
(
3
−
x
)
−
0.6
(
2
x
−
3
)
=
0
Q.
Which one of the following is not equal to
100
9
-
3
/
2
?
(a)
9
100
3
/
2
(b)
1
100
9
3
/
2
(c)
3
10
×
3
10
×
3
10
(d)
100
9
×
100
9
×
100
9
