Notesale: Turn your study into money

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Shortcuts for finding squares of numbers

It is very easy to find squares of numbers having digits greater than 1, if you know
the squares of single digit numbers
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Step 1:- Take the square the digit in the unit’s place
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2(1*1) =2
Step 3:- Take the square of the digit in the ten’s place
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The answer is 121
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Step 1:- Take the square of the digit in the unit’s place
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Step 2:- Multiply first and second digits and take the double of it
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8+1=9
Step 3:- Take the square of the number in the ten’s place
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The answer is 196
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Step 2:-

2(2*9) =36

Add 8 to it
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Step 3:-

2^2=4

Now, add 4 to it
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Your answer is 841
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Let us explain this with few
examples
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Step 2:- Here, we take the remaining digits, i
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, 10
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2(10*6) =120
Add 3 to it, it is 123
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Step 3:- Take square of 10
10^2=100
Add 12 to it, it is now 112
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e
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 Square of 232
Step 1:-

2^2=4

Step 2:-

2(23*2) =92

Take 2, keep 9
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Add 9 to it
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And the answer is 53824
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 This finds difficult initially
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