Mental Math Subtraction Trick: See The Difference, A Comparison For Subtraction 1
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This video depicts a difference between standard math and mental math methodologies for subtraction. Quickly subtract between numbers in your head easily with this mental math subtraction trick or technique without borrowing involved.
Standard math subtraction in some cases requires borrowing in order to complete the arithmetic process. Borrowing itself entails a minimum of two major steps. Review the general steps below.
(i) Borrow from a borrower digit and reduce that borrower digit’s value by one.
(ii) Add 10 to the borrowing digit.
These two steps are needed whenever borrowing is required. A math subtraction problem may contain anywhere from zero to more than one instance of borrowing.
In the example presented in the video, borrowing for the last two digits from the right of the minuend (3374) or the number doing the subtracting is required. This means two instances of borrowing must be applied, therefore, four steps are needed just for borrowing.
With mental math subtraction techniques, borrowing is eliminated. In this video for the mental math portion, a base amount is created for the subtrahend (number being subtracted) and then subtraction is performed. Subtracting base amounts or sometimes called multiples of 10s, 100s, and so forth makes the arithmetic process easier since the amount to subtract ends in zero/zeroes for some parts. Finally, the difference between the base amount 300 in this case and 289 is added at the end.
Standard math works well and has worked for centuries even thousands of years. Then why hasn’t mental math become more prevalent. One of the main reason is that mental math is known to only some people when compared to the backdrop of the main stream population. Another reason, at least here in the USA unlike several Asian countries such as Singapore, India, China, and others, mental math is not part of the curriculum in schools. Mental math may be a part of a special club like the Math Team but even most math teams do not have mental math. A third reason is that since only a few know the subject it does not get the recognition it deserves, therefore, there are very few people to push for an agenda.
As more and more people are finding out about mental math through the Internet, mental math has grown rapidly in the last 4 years. Its popularity will only continue to rise.
Please check back for other comparisons as the videos come online.
Mental Math Subtraction Trick
Check us at www.abellna.com.
http://www.abellna.com
This video depicts a difference between standard math and mental math methodologies for subtraction. Quickly subtract between numbers in your head easily with this mental math subtraction trick or technique without borrowing involved.
Standard math subtraction in some cases requires borrowing in order to complete the arithmetic process. Borrowing itself entails a minimum of two major steps. Review the general steps below.
(i) Borrow from a borrower digit and reduce that borrower digit’s value by one.
(ii) Add 10 to the borrowing digit.
These two steps are needed whenever borrowing is required. A math subtraction problem may contain anywhere from zero to more than one instance of borrowing.
In the example presented in the video, borrowing for the last two digits from the right of the minuend (3374) or the number doing the subtracting is required. This means two instances of borrowing must be applied, therefore, four steps are needed just for borrowing.
With mental math subtraction techniques, borrowing is eliminated. In this video for the mental math portion, a base amount is created for the subtrahend (number being subtracted) and then subtraction is performed. Subtracting base amounts or sometimes called multiples of 10s, 100s, and so forth makes the arithmetic process easier since the amount to subtract ends in zero/zeroes for some parts. Finally, the difference between the base amount 300 in this case and 289 is added at the end.
Standard math works well and has worked for centuries even thousands of years. Then why hasn’t mental math become more prevalent. One of the main reason is that mental math is known to only some people when compared to the backdrop of the main stream population. Another reason, at least here in the USA unlike several Asian countries such as Singapore, India, China, and others, mental math is not part of the curriculum in schools. Mental math may be a part of a special club like the Math Team but even most math teams do not have mental math. A third reason is that since only a few know the subject it does not get the recognition it deserves, therefore, there are very few people to push for an agenda.
As more and more people are finding out about mental math through the Internet, mental math has grown rapidly in the last 4 years. Its popularity will only continue to rise.
Please check back for other comparisons as the videos come online.
Mental Math Subtraction Trick
Check us at www.abellna.com.
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