Isn’t it fantastic to be able to compute faster in competitive tests or in everyday life? You have to answer more questions in less time on competitive exams. People are increasingly scurrying behind coaching centers in search of shortcuts. But without conceptual clarity, it is all completely pointless. The quick math formula to multiply any two-digit integer by 11 is as follows. Check other quicker math rules here.
Rule: Multiply any two-digit number by 11
There is an easy trick for multiplying any two-digit number by 11. Here it is:
11 x 25
Take the original two-digit number and put a space between the digits. In this example, that number is 25.
2_5
Now add those two numbers together and put the result in the center:
2_(2 + 5)_5
2_7_5
The answer to 11 x 25 is 275.
This is quicker math trick 7. Please check other speed math tricks here.
If the numbers in the center add up to a number with two digits, insert the second number and add 1 to the first one. Here is an example for the equation 11 x 88
8_(8 +8)_8
(8 + 1)_6_8
9_6_8
There is the answer to 11 x 88 = 968
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So, this was the rule to multiply any number by 11. Write down your feedback on comments section below. Also check the other speed math rules for faster calculations.
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