Touch Natural Numbers|教育線上App不用買-HotApp4Game

Small laboratory of Natural Numbers:

The Prime numbers are the building blocks of the numbers.

With this app you can:

Analyze the factors of a Composite number.

( Prime factorization of all the composite numbers between 1 and 28181 ).

Build a Composite number from its factors. (multiplication and division of Natural Numbers)

Localize or select a number in the Ulam Spiral.

(Only the Prime Numbers have a color in this spiral).

Verify all the possible products between Primes in a composite number with the Parabolic Sieve (Yuri Matiyasevich & Boris Stechkin).

Analyze or build a number with the Place Value activity (Addition and Subtraction of Natural Numbers)

Understand the Modulo of a number.

Know about the polygonal numbers and the numbers as the sum of two prime numbers, and as the sum of three Prime Numbers.

What is all this about? Read the nummolt blog post:

http://nummolt.blogspot.com.es/2014/06/touch-natural-numbers.html

Touch Math Apps:

http://www.nummolt.com

Registered at MathTools ( MathForum )

http://mathforum.org/mathtools/tool/240793/

Courses:

* Math 1 - Place value

* Math 2 - Place value

* Math 3 - Addition, Subtraction, Multiplication, Division, Whole numbers, Place value, Prime, Composite, Factor, Prime factorization, Divisibility tests, Multiple

* Math 4 - Addition, Subtraction, Multiplication, Division, Whole numbers, Place value, Prime, Composite, Factor, Prime factorization, Divisibility tests, Multiple

* Math 5 - Addition, Subtraction, Multiplication, Division, Whole numbers, Properties of numbers, Prime, Composite, Factor, Prime factorization, Divisibility tests, Multiple

* Math 6 - Addition, Subtraction, Multiplication, Division, Properties of numbers, Exponents, Prime, Composite, Factor, Prime factorization, Divisibility tests, Multiple

* Math 7 - Properties of numbers, Roots/radicals, Writing square roots, Prime, Composite, Factor, Prime factorization, Multiple