using properties, find the sum of the
following integers
425,215,-425
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1
Answer:
ANSWER
−
3
2
×
5
3
+
2
5
−
5
3
×
6
1
⇒ −
3
2
×
5
3
−
5
3
×
6
1
+
2
5
[ Using commutativity of rational numbers ]
⇒ −
5
3
×(
3
2
+
6
1
)+
2
5
[ By distributions ]
⇒ −
5
3
×(
6
2×2+1
)+
2
5
⇒ −
5
3
×
6
5
+
2
5
⇒
2
−1
+
2
5
⇒
2
−1+5
=
2
4
=2
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