## High-speed Mathematics |

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I have had the 1965 reprinting of this book and it is a prize to won. The concepts taught by Lester are illuminating and easyto grasp, and with practice can accelerate your math calculations and eliminate your need for paper and pencil or carrying digits. I recommend it to anyone who doesn't want to be calculator reliant, but does want to be calculator quick.

### Contents

CHAPTER ITHERE IS A SHORTCUT FOR VIR | 5 |

TABLE PAGE | 34 |

ARTICLE PAGE | 36 |

Copyright | |

86 other sections not shown

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### Common terms and phrases

aliquot annuity annum approximately average bill bond redeemable breakdown method calculation cent per annum chapter check number column common fraction compounded quarterly compounded semiannually Compute the answer Compute the number computed mentally conventional method cost price cubic feet cubic foot cubic inches cubic yards decimal fractions decimal point denominator difference discount divided dividend divisor dozen due date Example figures Find the cost following illustration following problems gallons gross gross units Hint instance interest payment interest period interest rate investment less mark-up material costing minus multiplicand multiply Note number of days obtained ordinary interest ounces partial products payable per-cent rates pounds preceding article present value profit purchase price quantity quotient ratio reader redemption value result selling price short-cut simple slide rule Solution square feet subtract Table XVII Table XX technique tunes weighs whole number yield rate York Curb Exchange York Stock Exchange zeros