Rule: Add the units digit to 25 and affix the square of the units digit to the result. If the square of the units digit is a one-digit number, precede it with a 0.
Find the square of 53, using this...
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Tuesday, March 4, 2014
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Squaring Any Three-Digit Number Ending IN 25
The square of 25 is 625. Oddly enough, these are the last three digits in the square of any three-digit number ending in 25. Since squaring a three-digit number results in at most six digits, the problem...
Squaring Any Number Ending IN 5
SQUARING ANY NUMBER ENDING IN 5
Rule: Multiply the complete number to the left of the 5 by one more then itself and affix 25 to the result.
To demonstrate, we shall find the square...
Squaring Any Number Ending IN 1
SQUARING ANY NUMBER ENDING IN 1:
Rule: First,square the number to the left of the units digit. Then double the number to the left of the digit. Affix the units digit of this result to...
Wednesday, February 26, 2014
Squaring Numbers
When we speak of "squaring" a number,we mean multiplying the number by itself. To square 23 we write.
...
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