Pre-Algebra 1.2 - Natural Numbers

From what you know about counting, what is the very first, or lowest of the counting numbers? You could begin counting with any any number you wish, but with the natural numbers, we say that the first number is always 1. This will mean that the number 1 is always the lowest natural number, or the lowest member of the natural number system. In mathematical language, we also call the number 1 the lower bound, which means that it cannot have any lower members. There is no highest natural number. This will mean that the natural numbers have no highest member or upper bound.

Natural Numbers

Numbers and Arithmetic

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Visual Math Learning is a free educational web site featuring an interactive on-line tutorial for teaching elementary mathematics and basic arithmetic for grades K-12 at the pre-algebra level. It is an instructional aid for parents, teachers, and educators of primary, elementary, and middle school students, as well as a resource for lesson plans, homework help, and home schooling math lessons. The tutorial includes games, puzzles, interactive diagrams, and computer animated virtual manipulatives that emphasize active learning concepts by visualization.