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Byju's Answer
Standard VI
Mathematics
Estimating Sum or Difference
58+34-712 is ...
Question
5
8
+
3
4
-
7
12
is equal to
(a)
15
24
(b)
17
24
(c)
19
24
(d)
21
24
Open in App
Solution
(c)
19
24
5
8
+
3
4
-
7
12
LCM
of
8
,
4
and
12
is
24
.
⇒
5
×
3
8
×
3
+
3
×
6
4
×
6
-
7
×
2
12
×
2
⇒
15
24
+
18
24
-
14
24
⇒
15
+
18
-
14
24
=
19
24
Suggest Corrections
0
Similar questions
Q.
Simplify:
5
8
+
3
4
-
7
12
Q.
Simplify:
(i)
2
3
+
3
4
+
1
2
(ii)
5
8
+
2
5
+
3
4
(iii)
3
10
+
7
15
+
3
5
(iv)
3
4
+
7
16
+
5
8
(v)
4
2
3
+
3
1
4
+
7
1
2
(vi)
7
1
3
+
3
2
3
+
5
1
6
(vii)
7
+
7
4
+
5
1
6
(viii)
5
6
+
3
+
3
4
(ix)
7
18
+
5
6
+
1
1
12
Q.
Find the difference:
5
8
-
7
12
Q.
Mark (✓) against the correct answer
5
4
-
7
6
-
-
2
3
=
?
(a)
3
4
(b)
-
3
4
(c)
-
7
12
(d)
7
12
Q.
Verify the following:
(i)
-
12
5
+
2
7
=
2
7
+
-
12
5
(ii)
-
5
8
+
-
9
13
=
-
9
13
+
-
5
8
(iii)
3
+
-
7
12
=
-
7
12
+
3
(iv)
2
-
7
+
12
-
35
=
12
-
35
+
2
-
7
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