Mental Arithmetic: Combining a Complete System of Rapid Computations, with Correct Logic of the Solutions of Problems, and the Analyses o Paperback -

Drills on Combinations. - The Addition, Subtree tion, Multiplication, and Division tables are omitted. Thor ough drills in the exercises given on pages 15, 17 to 22, 27, 30 to 35, 41, 51, and 52 will make pupils accurate and rapid in every possible combination of numbers.

Problems. - These are all new, and being prepared from material gathered from the various departments of actual business life, are, in numerous instances, the medium of in struction in the usages of business, and the uses of business terms and expressions.

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