How to Calculate Quickly – the art of calculation – Full Course in Speed Arithmetic by Henry Sticker.
Contents of How to Calculate Quickly PDF
ADDITION
- Addition in General
- Adding Single Columns by Pairs, starts on
- Adding Single Columns by Trios, starts on
- Mental Addition of Large Numbers, starts on
- Two-Column Addition, starts on
SUBTRACTION
- Subtraction in General
- Left-to-Right Subtraction, starts on
MULTIPLICATION
- Multiplication in General
- Factoring, starts on
- Direct Multiplication by Numbers Greater than 12, starts on
- Multiplying Three Figures by One, starts on
- Multiplying Two Figures by Two, starts on
- Multiplying Three Figures by Two, starts on
- Multiplying Three Figures by Three, starts on
DIVISION
- Division in General
- Direct Division by Numbers Greater than 12, starts on
- Mental Division of Large Numbers, starts on
- Division by Three Figures, starts on
- Division by Two Figures, starts on
FRACTIONS
- Fractions in General
- Addition and Subtraction of Fractions, starts on
DECIMALS
- Decimals in General
- Decimal Equivalents of Fractions, starts on
SHORT CUTS
- Horizontal Addition
- Combined Addition and Subtraction
- Multiplying by a Near Number
- Aliquot Parts in Multiplication
- Simplifying the Multiplier
- Multiplication by Factoring
- Factors between 11 and 19
- Multiplying by 11
- Multiplying by 21, 31, 41, etc
- Squares of Numbers, starts on
- Multiplying When Corresponding Orders Are Alike, starts on
- Multiplying a Sum by a Difference
- Multiplications Involving Fractions, starts on
- Aliquot Parts in Division
- Cubes of Numbers
- Algebraic Multiplication
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