# Numbers

### Description

Basic mind map about numbers.
Mind Map by Matthew Shiel, updated more than 1 year ago
 Created by Matthew Shiel almost 9 years ago
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## Resource summary

Numbers
1. Natural Numbers
1. Curly Brackets N = {1, 2, 3, ...}
1. Î is read as ‘is an element of’.
2. Integers
1. Integers (Z) Integers are any WHOLE number, positive or negative
1. {………-4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8………}
2. Real Numbers
1. All Elements in N or Z
1. a positive or negative decimal number +.
2. Rational + Irrational Numbers
1. rational numbers: real number that can be expressed as a ratio in which one integer is divided by another

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