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Interest Computations.
3 Nov 2023
Require the interest of $462.50 for one month and eighteen days at 6 per cent.
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Short Method to Find the Interest of a Given Sum.
2 Nov 2023
In some respects this rule is superior to the well-known 60-day method of reckoning interest.
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Table of Transposed Numbers.
1 Nov 2023
The transposition of figures is a frequent cause of errors in proving accounts and balance sheets.
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The Canadian Interest Rule.
31 Oct 2023
This rule of computing interest appears in some Canadian text-books, and, though simply a modification of other rules, is worthy of notice.
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Proof of Multiplication in Ten Seconds.
30 Oct 2023
The unitate of a number is the sum of its digits reduced to a unit.
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How to Make Change.
29 Oct 2023
Accuracy and rapidity in counting out change can best be acquired by practice behind the counter or at the cash-desk.
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Bank Discount.
28 Oct 2023
The time in bank discount is always the number of days from the date of discounting to the date of maturity.
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The Lightning Calculator’s Addition.
27 Oct 2023
The operator writes a line of figures, then another, and so on.
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Equation of Payments.
26 Oct 2023
The time for such payment is called the equated time.