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Byju's Answer
Standard VII
Mathematics
Properties of Addition and Subtraction
100*100-83*83...
Question
100*100-83*83 by using identity
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Solution
D
e
a
r
S
t
u
d
e
n
t
,
=
100
2
-
83
2
=
a
2
-
b
2
=
(
a
-
b
)
(
a
+
b
)
=
(
100
-
83
)
(
100
+
83
)
=
17
*
183
=
3111
R
e
g
a
r
d
s
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