Care should be taken to choose young ones not exceeding six inches in
length.
* * * * *
[Illustration: How to Calculate]
HOW TO CALCULATE.
PRACTICAL RULES, SHORT METHODS, AND PROBLEMS USED IN BUSINESS
COMPUTATIONS.
Rapidity and accuracy in making estimates and in figuring out the
result of business transactions is of the greatest necessity to the
man of business. A miscalculation may involve the loss of hundreds
or thousands of dollars, in many cases, while a slow and tedious
calculation involves loss of time and the advantage which should have
been seized at the moment. It is proposed in the following pages
to give a few brief methods and practical rules for performing
calculations which occur in every-day transactions among men,
presuming that a fair knowledge of the ordinary rules of arithmetic
has previously been attained.
ADDITION.
To be able to add up long columns of figures rapidly and correctly is
of great value to the merchant. This requires not only a knowledge
of addition, but in order to have a correct result, one that can be
relied upon, it requires concentration of the mind. Never allow other
thoughts to be flitting through the mind, or any outside matter
to disturb or draw it away from the figures, until the result is
obtained. Write the tens to be carried each time in a smaller figure
underneath the units, so that afterwards any column can be added
over again without repeating the entire operation.
Pages:
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484