Posts Tagged ‘Mental Math’

How to know if you’re good at math?

Monday, June 1st, 2009
Math Help


What does it mean to be good in math? Is it a god given ability or do you have to work at it? Does it mean that you can turn out mental math all day long in your head or solve complex calculus derivatives and such….

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How to get better in Mental math and simple calculations?

Wednesday, May 13th, 2009
Math Help


I am 19, and i still cant add, subtract, divide, multiply the most simple things in my head. I feel embarrassed sometimes. I really want to be able to do the most basic operations in my head. Sometimes I feel I need to go back to grade 1 to start learning math again. But what do you elementary/preschool teachers recommend?.

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How to get better in Mental math and simple calculations?

Monday, May 11th, 2009
Math Help


I am 19, and i still cant add, subtract, divide, multiply the most simple things in my head. I feel embarrassed sometimes. I really want to be able to do the most basic operations in my head. Sometimes I feel I need to go back to grade 1 to start learning math again. But what do you elementary/preschool teachers recommend?.

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Vedic Math Ancient Sutras – Basic Mental Math

Wednesday, March 11th, 2009
Math Help


The latest research in Vedic Math suggests that there are sixteen ancient Vedic Sutras which have been expanded upon by an additional thirteen sub-Sutras or math corollaries.

A brief discussion on each of these is in order.

The 16 Vedic Math Sutras as applicable to mathematics:

1. “Ekadhikena Purvena” (By one more than the previous one) The working of the Sutra is quite simple. In the case of the vulgar fraction 1/19 whose denominator ends with 9, in the normal method 18 steps are required. But with this Sutra it can be accomplished in only one step. The actual calculations and steps are beyond the scope of this writing. This is just to show the ease with which we can apply Vedic mathematics to everyday calculations as well as for solving complex equations.

2. “Nikhilam Navatascaramam Dasatah” (All from 9 and the last from 10) This is a cryptic Sutra for multiplying numbers. According to Vedic Math multiplication tables are not required beyond the 5 multiplied by 5. It is claimed that with this sutra multiplication becomes a Childs play.

3. “The Urdhva Tiryaghyam Sutra” (Vertically and crosswise multiplications) This is another short Sutra for multiplication

4. “Paravartya Yojayet” (Transpose and apply) This Sutra is used to solve simple equations

5. “Sunyam Samyasamuccaye” i.e. If the Samuccaya is the same (on both sides of the equation, then) that Samuccaya is (equal to) zero This Sutra is used to solve special type of equations. “Samuccaya” is a technical term which has several meanings in different contexts. In fact, a single word taking on different meanings is the beauty of Sanskrit text. At the same time it is also confusing and confounding to those who have not mastered the language. If looked at it from different angles, Sanskrit is a boon as well as a bane. Misunderstanding and misinterpreting is quite common among scholars. In as much as the scriptures are concerned, the meaning of words becomes all the more important.

6. “(Anurupye ) Sunyamanyat” ( If one is in ratio the other one is zero) There are some simultaneous equations which may involve large numbers and may therefore seem hard to solve, but owing to certain ratios between the coefficients can be readily and easily solved using this Sutra.

7. “Sankalana-vyavakalanabhyam”

8. “Puranapuranabhyam”

9. “Calana-kalanabhyam”

The above three Sutras are used in solving different types of quadratic equations.

10. “Yavadunam” This Sutra is used for squaring and cubing.

11. “Vyastisamastih”

12. “Sesanyankena Caramena”

13. “Sopantyadvayamantyam”

14. “Ekanyunena Purvena”

15. “Gunitasamuccayah”

16. “Gunakasamuccayah”

The above Sutras are used for different mathematical calculations in conjunction with other Sutras.



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Mental Math Practice Worksheets

Tuesday, March 10th, 2009
Math Help


Today, we all know the importance of learning and marveling at mathematics. And every time we visit our children’s schools we see Chinese and Indian students marveling at SATs. And we all know why they succeed in Engineering and Medical fields. Answer is quite simple, they are good at Math. But why are they so good? How did they study Math that makes them so good at that one arduous subject?

When we go to teacher meetings we are told by the teachers, to marvel at Math one must practice, practice and practice. But what if the child loses interest in practicing math? We all have had our share of experiencing the monotonous boring task of memorizing times tables. And after so many years, the same is repeated by the teachers everywhere, except, Asia. What do these Asians (Chinese, Japanese, Indians, etc.) do to make their children so good with Mathematics? Answer is quite simple, practice, practice & practice. But what is it that those students actually practice?

Lately, Abacus math has taken some of these Asian nations by storm. Abacus is a Latin word that has its origins in the Greek words abax or abakon (meaning “table” or “tablet”) which in turn, possibly originated from the Semitic word abq, meaning “sand”. The abacus is an instrument, a manual tool invented by the Chinese 2000 years ago. Over the past five years, in nations like Malaysia, Taiwan and India, countless tutoring centers like Sylvan, Huntington and Kumon have sprung up but with one goal in mind, tutor abacus math. Most of these centers offer training using the Japanese “Soroban abacus”, which has one upper row of beads and four lower rows. The Soroban abacus is particularly effective for teaching mathematical calculating skills to young children.

Using an abacus, a child can do all arithmetic calculations up to 10 digits and master the skill of doing it mentally, without relying on modern devices such as calculators.

There are procedures and training methodologies to master abacus use. When children use both hands to move the beads for small and large arithmetic calculations, the quick communication between hands and brain not only stimulates brain cells promoting speedier and faster calculation ability but also promotes quick, balanced and whole brain development.

Now that you know what are all the benefits of learning abacus math – let us continue talking about practicing math. Every textbook comes with few practice problems and we always feel that these few problems are not enough. We want more practice problems for our children and students. The next best alternative is to find math practice worksheets. There are many websites that offer you downloadable practice worksheets for a small fee. And there are some websites that offer you for free. Some offer you predefined sheets where as very few websites offer you build your own math practice worksheets.

Usage of math practice sheets early on can instill a great habit of enjoying math and at the same time help to solidify mental math skills. And using these sheets to perform abacus math mentally is absolute fun for a child.