## Interest Computations.

3 Nov 2023

Require the interest of $462.50 for one month and eighteen days at 6 per cent.

## 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.

## Table of Transposed Numbers.

1 Nov 2023

The transposition of figures is a frequent cause of errors in proving accounts and balance sheets.

## 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.

## Proof of Multiplication in Ten Seconds.

30 Oct 2023

The unitate of a number is the sum of its digits reduced to a unit.

## 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.

## 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.

## The Lightning Calculator’s Addition.

27 Oct 2023

The operator writes a line of figures, then another, and so on.

## Equation of Payments.

26 Oct 2023

The time for such payment is called the equated time.