2. The secret to acquiring all these benefits has its basis in
learning simple strategies for mental maths. Most of them
seek to address the 4 basic areas of mathematical
computation. Visit maths problems to read more about it.
Here are some samples from each of the four categories:
3. Multiplication
Multiplying double digit numbers is rather difficult to do
mentally. If one of these numbers is 11, take the other number
and separate its two figures (36X11=3_6). Get the value of
their sum (3+6=9) and place it in this middle space (396). The
new number is your answer.
A challenge arises when the sum of the two values is a double
digit number (93X11=9_3). In such a case, place the second
digit in that middle position (923); add the first digit to the
number in first position (1023).
4. Addition
Basic additions are rarely a challenge but if one has to add
numbers in a series, it often becomes an uphill climb. An easy
trick for getting the sum of any 10-number series is by
computing the product of its 7th number and 11. This is an
easy calculation when one employs the shortcut for
multiplication of numbers by 11.
5. Subtraction
Getting the difference between big numbers is a tough mental
maths challenge. For instance, a question may require you to
subtract a number from 1000 (1000-732). The easiest way is
to subtract the first two digits from 9, (9-7=2 and 9-3=6).
Subtract the last digit from 10 (10-2=8) and combine the
three digits to get the final answer (268).
6. Division
There is an easy technique for dividing large numbers by 5.
Simply multiply the number by 2 (13982x2=27964) and then
place a decimal point between the last two digits and you
have your answer (2796.4).
These are just a sample of the numerous shortcuts that one
can use to make mathematics easier. By using internet
references prepared for this purpose, one can get a lot more
of this sort. They make it easier to compute math problems
mentally than using a calculator.
7. The use of these and other similar strategies has proved very
useful for persons having to sit for aptitude tests. They also
help in saving time during examinations. Take your time
toresearch additional mental maths strategies and enjoy these
and numerous other benefits.
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