Bankers Adda is also known to be called as Easy Shortcuts adda.
Today we came back with a New Easy Shortcuts
Go through the Shortcut and if you have any doubts please contact bankers adda in the comment section.
Easy Multiplication Shortcut 10
Multiplying two 2-digit numbers (difference of 4)
1.Choose a 2-digit number.
2.Select a number either 4 smaller or 4 larger.
3.Find the middle number of the two (the average).
4.Square this middle number.
5.Subtract 4 from this square.
Ex:
If the first number is 38, choose 42 as the second number.
The middle number (the average) is 40.
Square this middle number: 40 × 40 = 1600.
Subtract 4 from this square: 1600 - 4 = 1596.
Then 38 × 42 = 1596.
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Aptitude Quiz Banking Quiz Computer Quiz
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Today we came back with a New Easy Shortcuts
Go through the Shortcut and if you have any doubts please contact bankers adda in the comment section.
Easy Multiplication Shortcut 10
Multiplying two 2-digit numbers (difference of 4)
1.Choose a 2-digit number.
2.Select a number either 4 smaller or 4 larger.
3.Find the middle number of the two (the average).
4.Square this middle number.
5.Subtract 4 from this square.
Ex:
If the first number is 38, choose 42 as the second number.
The middle number (the average) is 40.
Square this middle number: 40 × 40 = 1600.
Subtract 4 from this square: 1600 - 4 = 1596.
Then 38 × 42 = 1596.
Checkout other Topics
Aptitude Quiz Banking Quiz Computer Quiz
Daily Quiz English Quiz GK Quiz
English Learning Tips Invention Quiz Reasoning Quiz
Interview Tips Abbreviations Dates to Remember
