Mental Arithmetic Simplified1838 |
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add or subtract answer in pence Appendix avoirdupois black board day will amount Demonstration.-If Demonstration.-Taking farthings Demonstration.-The interest denominator ditto dividing by 48 DONCASTER drachm equal to dividing equal to multiplying Example.-One examples farthings as shillings farthings is equal find the interest find the value fraction.-RULE gallons given number gross improper fraction less than unity MENTAL ARITHMETIC multiplying by 48 number be divided number of articles number of dozens number of months number of pence number of pounds number of shillings Omitting Sundays ounce pence as shillings pence occur pounds as pence pupils quotient rate per cent reject the unit RULE.-Find RULE.-Reckon RULE.-Take the pounds rules score shillings as farthings shillings is equal stone sum of money take the aliquot taken as shillings teaches tiplied Troy Weight twice unit figure whole number