Practical and Mental Arithmetic, on a New Plan, in which Mental Arithmetic is Combined with the Use of the Slate: Containing a Complete System for All Practical Purposes ...
R.L.Underhill & Company, 1814
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acres added Addition amount answer apples barrels block bought bushels called cents Change ciphers common common denominator compound contained contents cord corn cost cube decimal denominator derive the following difference divided dividend Division divisor dollars equal example Exercises feet feet long figure following RULE foot four fraction gain gallons give given hence hundred illustrations inches interest James leaves length less mean miles mills minutes mixed months Multiply OPERATION oranges pence piece pints pound proceed proportion pupil quantity question quotient ratio receive Reduce remainder rods RULE shillings side Simple Slate sold solid square square root subtract TABLE tens third units weeks weight whole whole numbers wide worth write yards
Page 30 - ... then compute the interest on the principal sum due on the obligation for ONE YEAR, add it to the principal, and compute the interest on the sum paid from the time it was paid up to the end of the year; add it to the sum paid, and deduct that sum from the principal and interest added as above.
Page 29 - But if any payments be made before one year's interest hath accrued, then compute the interest on the principal sum due on the obligation, for one year, add it to the principal, and compute the interest on the sum paid, from the time it was paid, up to the end of the...
Page 21 - Multiply the second and third terms together, and divide their product by the first term ; the quotient will be the fourth term, or answer, in the same denomination with the third term.
Page 29 - COMPUTE the interest on the principal sum, from the time when the interest commenced to the first time when a payment was made, which exceeds either alone or in conjunction with the preceding payments (if any) the interest at that time due: add that interest to the principal, and from the sum subtract the payment made at that time, together with the preceding payments (if any) and the remainder forms a new principal ; on which, compute and subtract the interest, as upon the first principal: and proceed...