Here’s and example of a SMART MATH problem for ARITHMETIC.
Problem
Reduce the Expression:
=
-
= 2
-
= 2
-
= 9
-
= 4
-
= 10
The Usual Method
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=
i.e. =
i.e. =
Canceling the common term
, we get
=
(Ans: 2)
Estimated Time to arrive at the answer = 100 seconds
Using Technique
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Just rewrite the expression as:
=
Now observe the variable ‘y’ and its powers
LHS =>
RHS =>
(after opening the brackets)
This means that the variable ‘y’ cancels out and so the answer should have only the variable ‘x’. The only option that satisfies this condition is option ‘2’.
(Ans: 2)
Estimated Time to arrive at the answer = 10 seconds
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