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Standard VII
Mathematics
Addition and Subtraction of Integers
Question
Simplify :
21
−
27
+
3
+
12
×
(
−
1
)
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Solution
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21
−
27
+
3
+
12
×
(
−
1
)
=
21
−
27
+
3
−
12
=
−
6
+
3
−
12
=
−
3
−
12
=
−
15
.
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Simplify :
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