## 1-Digit Multiplication Around the World

Following are links to Internet resources that can be used to support instruction of the Math World feature for this chapter.

Ancient Egyptian Mathematics
Learn about the Egyptian number system and Egyptian computational methods used in addition, subtraction, multiplication, and division. This site is hosted by the University of St Andrews, Scotland.
http://www-history.mcs.st-andrews.ac.uk/history/Indexes/Egyptians.html

Calculating Machines
Created by computer engineer and collector Erez Kaplan, this site explains and displays a variety of adding and calculating machines and the developmental history of calculating machines. You may wish to start your exploration by clicking the Classification and pictorial view link.
http://www.webcom.com/calc/

Flashcards for Kids
This is a great site to practice arithmetic. Addition, subtraction, division, and multiplication number sentences are displayed, and you enter your answer. You can set the number range and select for two to ten numbers in each problem. You can also have correct and incorrect answers tracked. Make sure to set the cards for the proper grade level and mathematics operation.
http://www.edu4kids.com/math/

The Math Forum: Ask Dr. Math -- Egyptian Method of Multiplication
The Math Forum site at Swarthmore College offers the clearest explanation of the Egyptian method of multiplication. Search for more answers to math questions at this site while you are there.
http://mathforum.org/dr.math/problems/shelley.6.26.96.html

Earliest Uses of Symbols of Operation
This site provides details about the earliest uses of mathematical symbols. The information was collected by Jeff Miller, a Florida high school teacher.
http://members.aol.com/jeff570/operation.html

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