{"id":12764,"date":"2014-01-31T21:50:11","date_gmt":"2014-01-31T21:50:11","guid":{"rendered":"http:\/\/www.mometrix.com\/academy\/?page_id=12764"},"modified":"2026-03-25T15:17:15","modified_gmt":"2026-03-25T20:17:15","slug":"numbers-and-their-classifications","status":"publish","type":"page","link":"https:\/\/www.mometrix.com\/academy\/numbers-and-their-classifications\/","title":{"rendered":"Classification of Numbers"},"content":{"rendered":"<h1>Classification of Numbers<\/h1>\n\n\t\t\t<div id=\"mmDeferVideoEncompass_xwjLV66ZoLI\" style=\"position: relative;\">\n\t\t\t<picture>\n\t\t\t\t<source srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.webp\" type=\"image\/webp\">\n\t\t\t\t<source srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.png\" type=\"image\/jpeg\"> \n\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" loading=\"eager\" id=\"videoThumbnailImage_xwjLV66ZoLI\" data-source-videoID=\"xwjLV66ZoLI\" src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.png\" alt=\"Classification of Numbers Video\" height=\"464\" width=\"825\" class=\"size-full\" data-matomo-title = \"Classification of Numbers\">\n\t\t\t<\/picture>\n\t\t\t<\/div>\n\t\t\t<style>img#videoThumbnailImage_xwjLV66ZoLI:hover {cursor:pointer;} img#videoThumbnailImage_xwjLV66ZoLI {background-size:contain;background-image:url(\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/07\/updated-classification-of-numbers-64bff1de8d5b5-2.webp\");}<\/style>\n\t\t\t<script defer>\n\t\t\t  jQuery(\"img#videoThumbnailImage_xwjLV66ZoLI\").click(function() {\n\t\t\t\tlet videoId = jQuery(this).attr(\"data-source-videoID\");\n\t\t\t\tlet helpTag = '<div id=\"mmDeferVideoYTMessage_xwjLV66ZoLI\" style=\"display: none;position: absolute;top: -24px;width: 100%;text-align: center;\"><span style=\"font-style: italic;font-size: small;border-top: 1px solid #fc0;\">Having trouble? <a href=\"https:\/\/www.youtube.com\/watch?v='+videoId+'\" target=\"_blank\">Click here to watch on YouTube.<\/a><\/span><\/div>';\n\t\t\t\tlet tag = document.createElement(\"iframe\");\n\t\t\t\ttag.id = \"yt\" + videoId;\n\t\t\t\ttag.src = \"https:\/\/www.youtube-nocookie.com\/embed\/\" + videoId + \"?autoplay=1&controls=1&wmode=opaque&rel=0&egm=0&iv_load_policy=3&hd=0&enablejsapi=1\";\n\t\t\t\ttag.frameborder = 0;\n\t\t\t\ttag.allow = \"autoplay; fullscreen\";\n\t\t\t\ttag.width = this.width;\n\t\t\t\ttag.height = this.height;\n\t\t\t\ttag.setAttribute(\"data-matomo-title\",\"Classification of Numbers\");\n\t\t\t\tjQuery(\"div#mmDeferVideoEncompass_xwjLV66ZoLI\").html(tag);\n\t\t\t\tjQuery(\"div#mmDeferVideoEncompass_xwjLV66ZoLI\").prepend(helpTag);\n\t\t\t\tsetTimeout(function(){jQuery(\"div#mmDeferVideoYTMessage_xwjLV66ZoLI\").css(\"display\", \"block\");}, 2000);\n\t\t\t  });\n\t\t\t  \n\t\t\t<\/script>\n\t\t\n<div class=\"accordion\"><input id=\"transcript\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"transcript\">Transcript<\/label><input id=\"FAQs\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"FAQs\">FAQs<\/label><input id=\"factsheet\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"factsheet\">Fact Sheet<\/label><input id=\"PQs\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQs\">Practice<\/label>\n<div class=\"spoiler\" id=\"transcript-spoiler\">\n<p>Why do we classify numbers? Why do we give them names, like integers, irrational numbers, or negative numbers? For the same reason we classify anything, we want to make sure that everyone has an understanding of what specific numbers are called and what they mean. After all, there\u2019s a difference between 25, and -32, and \\(4^6\\). <\/p>\n<h2>Types of Numbers<\/h2>\n<p>In this Mometrix video, we provide an overview of numbers and their classifications.<\/p>\n<p>Numbers are our way of keeping order. We count the amount of money we have. We measure distance. We use <a class=\"ylist\" href=\"https:\/\/www.mometrix.com\/academy\/percentages\/\">percentages<\/a> to indicate a sale. Numbers are an integral part of our everyday existence, whether they are whole numbers, <a class=\"ylist\" href=\"https:\/\/www.mometrix.com\/academy\/rational-numbers\/\">rational numbers<\/a>, or the first type of numbers we\u2019re going to look at, real numbers.<\/p>\n<h2>Real Numbers<\/h2>\n<p>\nA real number is any value of a continuous quantity that can represent distance on a number line. Essentially, it\u2019s any number you can think of. Fifty (50) is a real number. One billion (1,000,000,000) is a very large real number. Real numbers encompass three classifications of numbers, which we\u2019ll talk about in a little bit. Whole numbers, rational numbers, and irrational numbers are all real numbers. <\/p>\n<h2>Imaginary Numbers<\/h2>\n<p>\nImaginary numbers are not real numbers. They are complex numbers that are written as a real number multiplied by an imaginary unit (\\(i\\)). For instance, \\(\\sqrt{-1}\\) calculates as the imaginary number \u201c\\(i\\)\u201d and \\(\\sqrt{-25}=5i\\). Even though imaginary numbers aren\u2019t \u201creal numbers,\u201d they do have value. Electricians use imaginary numbers when working with currents and voltage. Imaginary numbers are also used in complex calculus computations. So, just because these numbers are called \u201cimaginary\u201d doesn\u2019t mean that they aren\u2019t useful.<\/p>\n<h2>Whole Numbers<\/h2>\n<p>\nWhole numbers are numbers we count with. 1, 2, 3, 4, and 5 are all whole numbers. Whole numbers do not have fractions or decimals.<\/p>\n<p>All whole numbers are called <strong>integers<\/strong>. Integers can be positive or negative whole numbers.<\/p>\n<h2>Rational and Irrational Numbers<\/h2>\n<p>\nAll integers and whole numbers are part of a bigger group called <strong>rational numbers<\/strong>. This group also includes fractions and decimals. That means \\(\\frac{3}{5}\\) and 7.25 are rational numbers. Rational numbers can also be positive or negative. <\/p>\n<p>Rational numbers have opposites, which are called <strong>irrational numbers<\/strong>. These numbers can\u2019t be written as a simple fraction. Pi (\\(\\pi \\)) is the most famous irrational number. We have a close approximation of how to calculate pi, but it\u2019s just a close approximation. Pi is renowned for going on forever. That\u2019s why it\u2019s an irrational number. You can&#8217;t easily write it as a fraction.<\/p>\n<h2>Natural and Negative Numbers<\/h2>\n<p>\n<strong>Natural numbers<\/strong> are those that are positive integers, although there is some debate as to whether natural numbers start at 0 or 1. <strong>Negative numbers<\/strong> are, well, exactly that. They are the numbers below 0. <\/p>\n<h2>Even and Odd Numbers<\/h2>\n<p>\nThere are several other number classifications as well. Numbers are divided into even and odd numbers. If you can divide a number by 2, that number is even. So, 24, 36, and 74 are all even numbers because if you divide them by 2, you get 12, 18, and 37. Even numbers always end with 0, 2, 4, 6, or 8. <\/p>\n<p>Odd numbers can\u2019t be divided by 2 and leave a whole number. Any odd number divided by 2 will leave a fraction. So, 17 \u00f7 2 = 8.5, and 23 \u00f7 2 = 11.5. All odd numbers will end in 1, 3, 5, 7, or 9.<\/p>\n<h2>Fractions<\/h2>\n<p>\nNumerators and denominators form fractions, which are comprised of two integers. The number on top is the numerator; the number on the bottom is the denominator. The <strong>numerator<\/strong>, the top number, shows how many parts we have. The <strong>denominator<\/strong>, the bottom number, shows how many parts make a whole. <\/p>\n<p>Let\u2019s say you have 6 apples and 3 of the apples get eaten. The number of apples you have left over would be displayed as \\(\\frac{3}{6}\\).<\/p>\n<p>You would then divide 3, the top number, into 6, the bottom number, to determine the percentage of remaining apples. In this case, the number is 50%.<\/p>\n<p>So that\u2019s our look at numbers and their classifications. From whole numbers to irrational numbers, we need to know what to call numbers so we can know what they mean.<\/p>\n<p>I hope this overview was helpful to you!<\/p>\n<ul class=\"citelist\">\n<li><a href=\"https:\/\/plus.maths.org\/content\/complex-electricity\"target=\"_blank\">\u201cComplex Electricity.\u201d 2017. Plus.maths.org. November 24, 2017.<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"spoiler\" id=\"FAQs-spoiler\">\n<h2 style=\"text-align:center\"><span id=\"Frequently_Asked_Questions\" class=\"m-toc-anchor\"><\/span>Frequently Asked Questions<\/h2>\n<div class=\"faq-list\">\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">What are the classifications of numbers?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>The classifications of numbers are: real numbers, imaginary numbers, irrational numbers, integers, whole numbers, and natural numbers.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-69587\" src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram.png\" alt=\"classification of numbers diagram\" width=\"656\" height=\"437\" srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram.png 1710w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram-300x200.png 300w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram-1024x682.png 1024w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram-768x512.png 768w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2021\/02\/classification-of-numbers-diagram-1536x1023.png 1536w\" sizes=\"auto, (max-width: 656px) 100vw, 656px\" \/><\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">How many classifications of real numbers are there?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>There are five classifications of real numbers:<\/p>\n<ul>\n<li>Rational<\/li>\n<li>Irrational<\/li>\n<li>Integer<\/li>\n<li>Whole<\/li>\n<li>Natural\/counting<\/li>\n<\/ul>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">How do you classify natural numbers?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>Natural numbers, also called counting numbers, are positive integers (e.g., 1, 2, 3, 4, . . .).<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">What is classified as a whole number?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>A whole number is all natural\/counting numbers and 0 (e.g., 0, 1, 2, 3, 4, . . .).<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">What is the smallest whole number?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>The smallest whole number is 0.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">What are counting numbers?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>Counting numbers are positive integers. They are also called natural numbers (e.g., 1, 2, 3, 4, . . .).<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"qa_wrap\">\n<div class=\"q_item text_bold\">\n<h4 class=\"letter\">Q<\/h4>\n<p style=\"line-height: unset;\">How do I classify real numbers?<\/p>\n<\/p><\/div>\n<div class=\"a_item\">\n<h4 class=\"letter text_bold\">A<\/h4>\n<p>Classify a real number as a rational number if it is able to be written as a fraction. For example, 7 \\((\\frac{7}{1})\\), 6.25 \\((6\\frac{1}{4}\\) or \\(\\frac{25}{4})\\), and \\(\\frac{11}{21}\\) are real numbers.<\/p>\n<p>Classify a real number as an irrational number if it cannot be written as a fraction. For example, \\(\\pi\\), \\(e\\), and \\(\\sqrt{2}\\) are irrational.<\/p>\n<p>Classify a real number as an integer if it has no fractional part. For example, -2, 7, 0, and 24 are integers.<\/p>\n<p>Classify a real number as a whole number if it is 0 or a positive integer. For example, 0, 1, 3, and 11 are whole numbers.<\/p>\n<p>Classify a real number as a natural number (or counting number) if it is a positive integer. For example, 1, 9, and 42 are natural numbers.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<div class=\"spoiler\" id=\"factsheet-spoiler\">\n<h2 style=\"text-align:center\"><span id=\"Classifying_Numbers_PDF\" class=\"m-toc-anchor\"><\/span>Classifying Numbers PDF<\/h2>\n<div>\n\t\t\t\t\t<img width=\"1362\" height=\"1768\" src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938.png\" class=\"attachment-full size-full\" alt=\"A chart detailing the classification of numbers into categories like natural, whole, integers, rational, irrational, real, and imaginary. Each category includes examples for clarity.\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938.png 1362w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938-231x300.png 231w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938-789x1024.png 789w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938-768x997.png 768w, https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/image_2022-01-06_161938-1183x1536.png 1183w\" sizes=\"auto, (max-width: 1362px) 100vw, 1362px\" \/><\/p>\n<div class=\"sub_categories\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2022\/01\/Classification-of-Numbers-Fact-Sheet.pdf\"><span id=\"Your_Classification_of_Numbers_PDF_Download\" class=\"m-toc-anchor\"><\/span>Your Classification of Numbers PDF Download<\/a>\n\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"spoiler\" id=\"PQs-spoiler\">\n<h2 style=\"text-align:center\"><span id=\"Number_Classification_Practice_Questions\" class=\"m-toc-anchor\"><\/span>Number Classification Practice Questions<\/h2>\n\n\t\t\t\t<div class=\"PQ\">\n\t\t\t\t\t<strong>Question #1:<\/strong>\n\t\t\t\t\t<div style=\"margin-left:10px;\"><p>&nbsp;<br \/>\nThe number 4 is not included in which group of numbers?<\/p>\n<\/div>\n\t\t\t\t\t<div class=\"PQ-Choices\"><div class=\"PQ\"  id=\"PQ-1-1\">Integers<\/div><div class=\"PQ\"  id=\"PQ-1-2\">Whole numbers<\/div><div class=\"PQ correct_answer\"  id=\"PQ-1-3\">Irrational numbers<\/div><div class=\"PQ\"  id=\"PQ-1-4\">Natural numbers<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<input id=\"PQ-1\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-1\" style=\"width: 150px;\">Show Answer<\/label>\n\t\t\t\t\t<div class=\"answer\" id=\"PQ-1-spoiler\">\n\t\t\t\t\t\t<strong>Answer:<\/strong><div style=\"margin-left:10px;\"><p>The correct answer is irrational numbers. Irrational numbers are numbers that cannot be written as a simple fraction or decimal, like \\(\\pi\\). Natural numbers are counting numbers (1, 2, 3, 4 . . .). Whole numbers are natural numbers and zero, and integers are positive and negative whole numbers.<\/p>\n<\/div>\n\t\t\t\t\t\t<input id=\"PQ-1-hide\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-1-hide\" style=\"width: 150px;\">Hide Answer<\/label>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"PQ\">\n\t\t\t\t\t<strong>Question #2:<\/strong>\n\t\t\t\t\t<div style=\"margin-left:10px;\"><p>&nbsp;<br \/>\nWhat classification is the number \\(i\\)?<\/p>\n<\/div>\n\t\t\t\t\t<div class=\"PQ-Choices\"><div class=\"PQ\"  id=\"PQ-2-1\">Real number<\/div><div class=\"PQ\"  id=\"PQ-2-2\">Irrational number<\/div><div class=\"PQ correct_answer\"  id=\"PQ-2-3\">Imaginary number<\/div><div class=\"PQ\"  id=\"PQ-2-4\">Integer<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<input id=\"PQ-2\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-2\" style=\"width: 150px;\">Show Answer<\/label>\n\t\t\t\t\t<div class=\"answer\" id=\"PQ-2-spoiler\">\n\t\t\t\t\t\t<strong>Answer:<\/strong><div style=\"margin-left:10px;\"><p>The letter \\(i\\) is used to represent the imaginary number \\(\\sqrt{-1}\\).<\/p>\n<\/div>\n\t\t\t\t\t\t<input id=\"PQ-2-hide\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-2-hide\" style=\"width: 150px;\">Hide Answer<\/label>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"PQ\">\n\t\t\t\t\t<strong>Question #3:<\/strong>\n\t\t\t\t\t<div style=\"margin-left:10px;\"><p>&nbsp;<br \/>\nWhat is the difference between a whole number and an integer?<\/p>\n<\/div>\n\t\t\t\t\t<div class=\"PQ-Choices\"><div class=\"PQ correct_answer\"  id=\"PQ-3-1\">Whole numbers can only be zero or positive natural numbers, but integers can also be negative natural numbers.<\/div><div class=\"PQ\"  id=\"PQ-3-2\">Whole numbers are numbers that have no fractional part, and integers are fractions or decimal numbers.<\/div><div class=\"PQ\"  id=\"PQ-3-3\">Whole numbers do not include zero, but integers do contain zero.<\/div><div class=\"PQ\"  id=\"PQ-3-4\">Whole numbers have no imaginary part, but integers can have an imaginary part.<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<input id=\"PQ-3\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-3\" style=\"width: 150px;\">Show Answer<\/label>\n\t\t\t\t\t<div class=\"answer\" id=\"PQ-3-spoiler\">\n\t\t\t\t\t\t<strong>Answer:<\/strong><div style=\"margin-left:10px;\"><p>Whole numbers are the set of all natural numbers including zero, and integers are positive and negative whole numbers. Neither whole numbers nor integers have a fractional or imaginary part.<\/p>\n<\/div>\n\t\t\t\t\t\t<input id=\"PQ-3-hide\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-3-hide\" style=\"width: 150px;\">Hide Answer<\/label>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"PQ\">\n\t\t\t\t\t<strong>Question #4:<\/strong>\n\t\t\t\t\t<div style=\"margin-left:10px;\"><p>&nbsp;<br \/>\nIs 2.713 a rational number?<\/p>\n<\/div>\n\t\t\t\t\t<div class=\"PQ-Choices\"><div class=\"PQ correct_answer\"  id=\"PQ-4-1\">Yes<\/div><div class=\"PQ\"  id=\"PQ-4-2\">No<\/div><div class=\"PQ\"  id=\"PQ-4-3\">Sometimes<\/div><div class=\"PQ\"  id=\"PQ-4-4\">Cannot be determined<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<input id=\"PQ-4\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-4\" style=\"width: 150px;\">Show Answer<\/label>\n\t\t\t\t\t<div class=\"answer\" id=\"PQ-4-spoiler\">\n\t\t\t\t\t\t<strong>Answer:<\/strong><div style=\"margin-left:10px;\"><p>Rational numbers are all numbers that can be expressed as the division of integers. In other words, rational numbers are any number that can be represented by a fraction or a decimal.<\/p>\n<\/div>\n\t\t\t\t\t\t<input id=\"PQ-4-hide\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-4-hide\" style=\"width: 150px;\">Hide Answer<\/label>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"PQ\">\n\t\t\t\t\t<strong>Question #5:<\/strong>\n\t\t\t\t\t<div style=\"margin-left:10px;\"><p>&nbsp;<br \/>\nWhich of the following numbers is not odd?<\/p>\n<\/div>\n\t\t\t\t\t<div class=\"PQ-Choices\"><div class=\"PQ\"  id=\"PQ-5-1\">21<\/div><div class=\"PQ\"  id=\"PQ-5-2\">73<\/div><div class=\"PQ\"  id=\"PQ-5-3\">49<\/div><div class=\"PQ correct_answer\"  id=\"PQ-5-4\">16<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<input id=\"PQ-5\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-5\" style=\"width: 150px;\">Show Answer<\/label>\n\t\t\t\t\t<div class=\"answer\" id=\"PQ-5-spoiler\">\n\t\t\t\t\t\t<strong>Answer:<\/strong><div style=\"margin-left:10px;\"><p>The number 16 is even, not odd. An odd number is any number that cannot be divided by 2.<\/p>\n<\/div>\n\t\t\t\t\t\t<input id=\"PQ-5-hide\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"PQ-5-hide\" style=\"width: 150px;\">Hide Answer<\/label>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div>\n<\/div>\n\n<p>&nbsp;<\/p>\n<div class=\"home-buttons\">\n<p><a href=\"https:\/\/www.mometrix.com\/academy\/basic-arithmetic\/\">Return to Basic Arithmetic Videos<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Classification of Numbers &nbsp; Return to Basic Arithmetic Videos<\/p>\n","protected":false},"author":1,"featured_media":186620,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":{"0":"post-12764","1":"page","2":"type-page","3":"status-publish","4":"has-post-thumbnail","6":"page_category-additional-topics","7":"page_category-math-advertising-group","8":"page_category-video-pages-for-study-course-sidebar-ad","9":"page_type-video","10":"content_type-fact-sheet","11":"content_type-practice-questions","12":"subject_matter-math"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/12764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/comments?post=12764"}],"version-history":[{"count":7,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/12764\/revisions"}],"predecessor-version":[{"id":285070,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/12764\/revisions\/285070"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/media\/186620"}],"wp:attachment":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/media?parent=12764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}