Includes index.

Contents: Whole numbers: addition and subtraction -- Reading and writing whole numbers -- Aligning digits by place value -- Adding whole numbers -- Developing speed in addition -- Checking addition -- Adding horizontally and vertically -- Increasing speed in adding large groups of numbers -- Rounding numbers and estimating answers -- Subtracting whole numbers -- Subtracting horizontally and estimating answers -- Problem solving -- Whole numbers: multiplication and division -- Multiplication: finding the product -- Checking and estimating with multiplication -- Using multiplication in business -- Dividing whole numbers -- Checking and estimating with division -- Using division in business -- Computing averages -- Decimals: addition, subtraction, multiplication, and division -- Reading, writing, and rounding decimals -- Adding decimals -- Subtracting decimals -- Multiplying decimals -- Dividing decimals -- Shortcuts in multiplication of decimals -- Shortcuts in multiplication of decimals -- Shortcuts in division of decimals -- Working with fractions -- Renaming fractions -- Finding the lowest common denominator -- Adding fractions, mixed numbers, and decimal equivalents -- Subtracting fractions and mixed numbers -- Multiplying fractions and mixed numbers -- Dividing fractions and mixed numbers -- Computing fractional parts -- Using fractional parts -- Percents and other tools of mathematical analysis -- Percents, decimals, and fractions -- The Portion formula and computing rate, base, portion, increase, and decrease -- Computing sales commissions -- Computing agents' and brokers' commissions -- Computing makeups and selling price -- Computing markdowns and selling at a loss -- Using ratio and proportions -- Using tables -- Reading graphs -- Business and consumer math -- Checking accounts and bank records -- Reconciling bank statements -- Payroll plans -- Payroll deductions -- Taking inventory -- Valuing inventory -- Computing depreciation by straight-line and double declining balance methods -- Computing depreciation by units of production and sum-of-the years' digits methods -- Interest and simple interest by formula -- using a simple interest table -- Computing exact interest and exact time -- Computing compound interest -- Discounting noninterest-bearing notes and drafts -- Discounting interest-bearing notes and drafts -- Installment purchases -- Computing interest on unpaid balances -- Computing cash discounts -- Changing a discount series to single-discount equivalent -- Appendix.