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Purple Math
Purplemath: Lcm & Gcf
Purplemath shows an easy and orderly way to determine the GCF and LCM of any two numbers. Even large numbers won't be a challenge with this method.
CK-12 Foundation
Ck 12: Arithmetic: Prime Factorization
[Free Registration/Login may be required to access all resource tools.] Write the prime factorization of given numbers.
Cuemath
Cuemath: Factors
A factor of a number in math is a number that divides the given number. Factors are used in many situations in daily life. This article explains factors and how to find factors using multiplication and division. Included are solved...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Southern China, 1912
A map from 1912 of the southern China provinces at the end of the ruling Qing Dynasty.The map shows the political divisions at the time, province capitals and major cities, ports, railways, rivers, coastal features and islands of the...
ibiblio
Ibiblio: Web Museum: Yves Tanguy
Brief information on Surrealist artist, Yves Tanguy with enlargeable image of "Indefinite Divisibility."
ClassFlow
Class Flow: Introduction to Division With Remainders
[Free Registration/Login Required] This flipchart is an introduction to division with remainders. The lesson consists of teaching children the basics of division with remainders in problems that contain a 2-digit dividend with a 1 digit...
Sophia Learning
Sophia: Even Numbers: Lesson 8
This lesson shows even numbers, or numbers which can be evenly divided by two. It is 8 of 13 in the series titled "Even Numbers."
Math Is Fun
Math Is Fun: Long Division to Decimal Places
If you want to learn the traditional algorithm for long division when you divide to the decimal places, this website gives a very clear, simple step-by-step break down of the process. Students can solve six problems to practice the skill...
Other
American Amateur Baseball Congress
The official website for the American Amateur Baseball Congress (AABC), the largest amateur baseball organization in the United States. Their site contains information on each of the AABC divisions, game results, news releases, and the...
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: La Criba De Eratostenes
Reinforce your knowledge about prime and composite numbers. Geogebra plugin required.