Venn Diagram - Number System: ![\"venn](\"../../../userfiles/image/Library/Algebra%202/venn_diagram_number_properties%281%29.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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The number is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04335813473a1977be7c5bbc11aecd74.png\")
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Observe the Venn diagram:
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- The number -31 is a negative integer (Z).So, it is neither natural (N)
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nor a whole number(W)
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- The number -31 is a rational numbers (Q).
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- All rational numbers (Q) are real numbers (R).
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![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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The number ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04335813473a1977be7c5bbc11aecd74.png\")
belongs to Z, Q, and R.