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Tuesday, October 2, 2012

Squaring - Three Digit Number

Category: Arithmetic, Algebra

"Published in Newark, California, USA"

Find the value ofwithout using a calculator.

Solution:

The given number is close to 100 which is a perfect square. We can write 103 as 100 + 3. By using the squaring of a binomial, we can square 103 without using a calculator as follows