In accounting, red ink is sometimes used for negative numbers. In most recent mathematics, the symbol is simply a minus sign placed in front, so that -3 means negative three. In some American classrooms, a distinction has been made between -3, which means the number negative three, and -3, which means "subtract three." Investigate what other devices have been used in the past. Was the distinction between "negative three" and "minus three" made historically, or is it a recent invention?
In accounting, red ink is sometimes used for negative numbers. In most recent mathematics, the symbol is simply a minus sign placed in front, so that -3 means negative three. In some American classrooms, a distinction has been made between -3, which means the number negative three, and -3, which means "subtract three." Investigate what other devices have been used in the past. Was the distinction between "negative three" and "minus three" made historically, or is it a recent invention?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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In accounting, red ink is sometimes used for negative numbers. In most recent mathematics, the symbol is simply a minus sign placed in front, so that -3 means negative three. In some American classrooms, a distinction has been made between -3, which means the number negative three, and -3, which means "subtract three." Investigate what other devices have been used in the past. Was the distinction between "negative three" and "minus three" made historically, or is it a recent invention?
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