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 1
Multiplying 2-digit numbers where the Unit’s digit add up to 10 and Ten’s digits are same.
Suppose, we want to find the multiplication of two numbers AB & AC (where B + C = 10),
then we can follow the following steps to find the answers –
1. First find the multiplication of last two digit of both the numbers ie. Find B x C. It will give us last 2 digits of the answer.
2. Perform operation n x (n+1) on A. It will give us the initial digits of the multiplication.
Example, find 42 × 48 ?
Both the numbers here start with 4 and the unit digits (2 and 8) add up to 10.
Steps:
1. First multiply the unit digit of the number: 2 × 8 = 16
2. Then multiply 4 by 5 (the succeeding number) to get 20 for the first part of the answer.
3. So, Required answer is 2016.
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
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 1
Multiplying 2-digit numbers where the Unit’s digit add up to 10 and Ten’s digits are same.
Suppose, we want to find the multiplication of two numbers AB & AC (where B + C = 10),
then we can follow the following steps to find the answers –
1. First find the multiplication of last two digit of both the numbers ie. Find B x C. It will give us last 2 digits of the answer.
2. Perform operation n x (n+1) on A. It will give us the initial digits of the multiplication.
Example, find 42 × 48 ?
Both the numbers here start with 4 and the unit digits (2 and 8) add up to 10.
Steps:
1. First multiply the unit digit of the number: 2 × 8 = 16
2. Then multiply 4 by 5 (the succeeding number) to get 20 for the first part of the answer.
3. So, Required answer is 2016.
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
