Mental Math Methods From Asia by Shilpa Rao
... The sixteen sutras are: By one more than the one before, All from 9 and the last from 10, Vertically and crosswise, Transpose and apply, If the Samuccaya is the same it is zero, If one is in ratio the other is zero, By addition and by subtraction, By the completion or non-completion, Differential calculus, By the deficiency, Specific and general, The remainders by the last digit, The ultimate and twice the penultimate, By one less than the one before, The product of the sum, and All the ...

Turbo Boost Your Brain Power by Leon Edward
... Face it; most of us are spoiled by having calculators to do our addition and subtraction. At its core, math embodies the purest form of logic. Letting your basic math skills deteriorate is similar to letting your logical and deductive reasoning take a downslide. 5) Take Abstract Logic Tests There are test books available in bookstores that give extensive tests on abstract logic. These tests present one with sets of 3 pictures; the test taker has to extrapolate from the first three pictures ...

Using a Scientific Calculator In Mathematics Exams by N Pinhey
... Addition and SubtractionBeing aware of this order is necessary in order to use a scientific calculator properly. This order should always be used in all mathematical calculations whether using a calculator or not. Scientific calculator checkThere are two types of scientific calculator, the most recent type being algebraic scientific calculators. Algebraic scientific calculators allow users to type in calculations in the order in which they have been written down.