
{"id":788611,"date":"2024-06-04T13:36:46","date_gmt":"2024-06-04T08:06:46","guid":{"rendered":"https:\/\/leverageedu.com\/discover\/?p=788611"},"modified":"2024-06-04T13:36:46","modified_gmt":"2024-06-04T08:06:46","slug":"cbse-class-6-ncert-maths-chapter-1-knowing-our-numbers","status":"publish","type":"post","link":"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-1-knowing-our-numbers\/","title":{"rendered":"NCERT Class 6 Maths Chapter 1 &#8216;Knowing Our Numbers&#8217;: Notes and Solutions (Free PDF)"},"content":{"rendered":"\n<p>As the name suggests, chapter 1 of CBSE NCERT Maths for Class 6 deals with the study of numbers. It teaches students about the magnitude of numbers, make comparisons, and apply different mathematical operations to them. The chapter also introduces the concept of prime numbers, composite numbers, and so on. With constant practice and solving the exercise questions as well as the practice questions on time, students become good at their understanding of the chapter. In this blog, we will cover the CBSE Class 6 NCERT Maths Chapter 1 Notes and Important Questions in sequence.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular has-medium-font-size\"><table class=\"has-vivid-red-color has-very-light-gray-to-cyan-bluish-gray-gradient-background has-text-color has-background has-link-color\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/10v5eNYvg9vf8cvfa3wQJVH5QJxWB1neU\/view?usp=sharing\"><strong>Download CBSE Class 6 NCERT Maths Chapter 1 Notes PDF Free<\/strong><\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-c67cc788e177c8c3b3737e9c02b15f13\"><strong>Explore all the Chapters of Class 6 Mathematics:-<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-pale-ocean-gradient-background has-background\"><tbody><tr><td>Chapter 1<\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-2-whole-numbers\/\"><strong>Chapter 2<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-3-playing-with-numbers\/\"><strong>Chapter 3<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-4-basic-geometrical-ideas\/\"><strong>Chapter 4<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-5-understanding-elementary-shapes\/\"><strong>Chapter 5<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-6-integers\/\"><strong>Chapter 6<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-7-fractions\/\"><strong>Chapter 7<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-maths-class-6-chapter-8-decimals\/\"><strong>Chapter 8<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/ncert-study-material\/cbse-ncert-maths-class-6-chapter-9-notes\/\"><strong>Chapter 9<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-10\/\"><strong>Chapter 10<\/strong><\/a><\/td><td><strong>Chapter 11<\/strong><\/td><td><strong>Chapter 12<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n\n<p class=\"has-pale-cyan-blue-background-color has-background\"><strong>Also Read: Main Branches of Mathematics<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cbse-class-6-ncert-maths-chapter-1-notes-pdf-free-download\">CBSE Class 6 NCERT Maths Chapter 1 Notes PDF \u2013 Free Download<\/h2>\n\n\n\n<p>Here are the notes on the important topics taught in Chapter 1 of the CBSE NCERT Maths for Class 6. Following these, we will provide solutions to the exercise questions.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-topic-1-comparing-numbers\">Topic 1 \u2013 Comparing Numbers<\/h3>\n\n\n\n<p>The topic deals with the comparison of numbers in a given set of numbers. The trick and steps to solving such questions are \u2013\u00a0<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Look for the total number of digits in the given set of numbers. The number with the maximum digits is the greatest and the one with the least number of digits is the smallest.<\/li>\n<\/ol>\n\n\n\n<p>Eg \u2013 3452, 953<\/p>\n\n\n\n<p>In the above example, the number 953 has 3 digits so it is the smaller number here and the number 3452 has 4 digits in it, symbolizing it to be a greater number.\u00a0<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>For numbers with the same number of digits, look for the digits from the left-hand side of the given number. The numbers with the greatest digit on their left are the greatest. Also, for further comparisons, keep looking at the digits to the right of the first digit and arrange them in ascending or descending order based on the same concept above.\u00a0\u00a0<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img  decoding=\"async\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=\"  alt=\"Class 6 NCERT Maths Chapter 1 Notes and Exercise Solutions comparing numbers\"  title=\"Comparing Numbers\"  class=\" pk-lazyload\"  data-pk-sizes=\"auto\"  data-pk-src=\"https:\/\/lh3.googleusercontent.com\/LT5K2ANma2C8rWWy98T07yYya4SqRQtNh_ckQ_3QCXrNk_75zignpxzei9rLz_C_jg2QJISqjhe3aJgw9GSVfY4MaQgUpZMeFzl8V7us_JtOyhCRBRx1jF8VoBPUvmYfO5uZDckoMhr5hG_OqpFn_WA\" ><\/figure>\n\n\n\n<p>Now, with the help of the above topic, you can easily understand the topic \u201cHow many numbers you can make?\u201d. You have also learned to arrange the numbers in decreasing and increasing order.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-topic-2-introducing-10-000\">Topic 2: Introducing 10,000<\/h3>\n\n\n\n<p>From the knowledge of previous classes, we know that 99 is the greatest 2-digit number. Similarly, 999 and 9999 are the greatest 3-digit and 4-digit numbers respectively. If we add 1 to any of these numbers, they will not remain the 2-digit, 3-digit or even 4-digit numbers anymore. So, here we are:<\/p>\n\n\n\n<p>Greatest 1-digit number = 9<\/p>\n\n\n\n<p>Greatest 2-digit number = 99\u00a0<\/p>\n\n\n\n<p>Greatest 3-digit number = 999<\/p>\n\n\n\n<p>Greatest 4-digit number = 9999<\/p>\n\n\n\n<p>Now,\u00a0<\/p>\n\n\n\n<p>Greatest 1-digit number + 1 = 9 + 1 = 10 = Smallest 2-digit number<\/p>\n\n\n\n<p>Greatest 2-digit number + 1 = 99 + 1 = 100 = Smallest 3-digit number<\/p>\n\n\n\n<p>Greatest 3-digit number + 1 = 999 + 1 = 1000 = Smallest 4-digit number<\/p>\n\n\n\n<p>Greatest 4-digit number + 1 = 9999 + 1 = 10,000 (Ten thousand) = Smallest 5-digit number<\/p>\n\n\n\n<p>So, from the above examples we saw that on adding 1 to the greatest number in a specified digit\u2019s number, we get the smallest number of the next higher digit number.\u00a0<\/p>\n\n\n\n<p><strong>Key Takeaways: <\/strong>10,000 is the lowest 5-digit number<\/p>\n\n\n\n<p class=\"has-pale-cyan-blue-background-color has-background\"><strong>Also Read: Maths Formulas for Class 10th<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-topic-3-revisiting-place-values\">Topic 3: Revisiting Place Values<\/h3>\n\n\n\n<p>Remember how we used to expand the given numbers based on their place value? Well, this step just takes a step further with understanding \u2013 how to expand a 5-digit number. But first, let\u2019s expand a 3-digit number to recall the concept. Easy?<\/p>\n\n\n\n<p>352 = 3 \u2715 100 + 5 \u2715 10 + 2 \u2715 1<\/p>\n\n\n\n<p>In the above example, 3 is at the hundreds place, 5 is at the tens place and 2 is at the ones place.\u00a0<\/p>\n\n\n\n<p>Now, let\u2019s see more places of the number system:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-pale-cyan-blue-background-color has-background has-fixed-layout\"><tbody><tr><td><strong>Places<\/strong>\u00a0<\/td><td>One\u2019s Place<\/td><td>Tens Place<\/td><td>Hundreds Place<\/td><td>Thousands Place\u00a0<\/td><td>Ten Thousand Place<\/td><td>Lakhs Place<\/td><td>Ten Lakhs Place<\/td><td>Crores Place<\/td><td>Ten Crores Place<\/td><\/tr><tr><td>Places Symbols<\/td><td>O<\/td><td>T<\/td><td>H<\/td><td>Th<\/td><td>TTh<\/td><td>Lakh<\/td><td>TLakh<\/td><td>Cr<\/td><td>TCr<\/td><\/tr><tr><td>2,57,35,543<\/td><td>3<\/td><td>4<\/td><td>5<\/td><td>5<\/td><td>3<\/td><td>7<\/td><td>5<\/td><td>2<\/td><td>\u2013<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-topic-4-use-of-commas\">Topic 4: Use of Commas<\/h3>\n\n\n\n<p><strong>In the Indian Numeration System<\/strong>, commas are used to mark thousands, lakhs, and crores. So, the first comma comes after 3 digits from the right, the second comma comes 2 digits later and the third comma comes after the next 2 digits.\u00a0<\/p>\n\n\n\n<p><strong>For example<\/strong>, 24567890 \u21d2 2,45,67,890 \u21d2 the number is read as \u2013 two crores forty-five lakhs sixty-seven thousand eight hundred ninety<\/p>\n\n\n\n<p><strong>In the International Numeration System<\/strong>, commas are used to mark thousands and then millions. Here, the denotation of 10 lakhs is replaced by 1 million. So, the first comma comes after 3 digits from the right, followed by the second comma after the next 3 digits.\u00a0<\/p>\n\n\n\n<p><strong>For example<\/strong> 24567890 \u21d2 24,567,890 \u21d2 the number is read as \u2013 twenty-four million five\u00a0 hundred sixty-seven thousand eight hundred ninety<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-topic-5-interconversion-of-units\">Topic 5: Interconversion of Units<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-pale-cyan-blue-background-color has-background has-fixed-layout\"><tbody><tr><td>1 kilometre (km)<\/td><td>1000 metres (m)<\/td><\/tr><tr><td>1 metre (m)<\/td><td>100 centimetres (cm)<\/td><\/tr><tr><td><\/td><td>1000 millimetres (mm)<\/td><\/tr><tr><td>1 kilogram (kg)<\/td><td>1000 grams (g)<\/td><\/tr><tr><td>1 gram (g)<\/td><td>1000 milligrams (mg)<\/td><\/tr><tr><td>1 kilolitre (kl)<\/td><td>1000 litre (l)<\/td><\/tr><tr><td>1 litre (l)<\/td><td>1000 millilitre (ml)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-regular has-medium-font-size\"><table class=\"has-vivid-red-color has-very-light-gray-to-cyan-bluish-gray-gradient-background has-text-color has-background has-link-color\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/10v5eNYvg9vf8cvfa3wQJVH5QJxWB1neU\/view?usp=sharing\"><strong>Download CBSE Class 6 NCERT Maths Chapter 1 Notes PDF Free<\/strong><\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-c67cc788e177c8c3b3737e9c02b15f13\"><strong>Explore all the Chapters of Class 6 Mathematics:-<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-pale-ocean-gradient-background has-background\"><tbody><tr><td>Chapter 1<\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-2-whole-numbers\/\"><strong>Chapter 2<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-3-playing-with-numbers\/\"><strong>Chapter 3<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-4-basic-geometrical-ideas\/\"><strong>Chapter 4<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-ncert-maths-chapter-5-understanding-elementary-shapes\/\"><strong>Chapter 5<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-6-integers\/\"><strong>Chapter 6<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-7-fractions\/\"><strong>Chapter 7<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-maths-class-6-chapter-8-decimals\/\"><strong>Chapter 8<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/ncert-study-material\/cbse-ncert-maths-class-6-chapter-9-notes\/\"><strong>Chapter 9<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-class-6-maths-chapter-10\/\"><strong>Chapter 10<\/strong><\/a><\/td><td><strong>Chapter 11<\/strong><\/td><td><strong>Chapter 12<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-important-questions-in-ncert-class-6-maths-chapter-1-pdf-free-download\">Important Questions in NCERT Class 6 Maths Chapter 1 PDF \u2013 Free Download<\/h2>\n\n\n\n<p>Here are the important questions on the important topics taught in Chapter 1 of the NCET Maths for Class 6.\u00a0<\/p>\n\n\n\n<p><strong>Q 1. Make the greatest and the smallest 4-digit number using any of the 3 below-given digits twice. (9, 0, 5)<\/strong><\/p>\n\n\n\n<p class=\"has-white-background-color has-background\"><strong>Ans. \u00a0 <\/strong>The given numbers are 9, 0, and 5.\u00a0<\/p>\n\n\n\n<p>Now, for the smallest 4-digit number, use the smallest given digit twice on the left followed by each succeeding digit. But, here is an exception \u2013 we cannot use \u201c0\u201d on the left as then the resulting number won\u2019t be a 4-digit number.<\/p>\n\n\n\n<p>Hence, the smallest number comes out to be 5009.<\/p>\n\n\n\n<p>Similarly, the greatest number comes out to be 9950.\u00a0<\/p>\n\n\n\n<p><strong>Q 2. Arrange the following numbers in ascending order: 847, 9754, 8320 and 571.\u00a0<\/strong><\/p>\n\n\n\n<p><strong>Ans. <\/strong>In ascending order, we begin writing the smallest number first and follow by writing the successively larger number. This gives us a series of numbers that are greater than the preceding one as we move to the right.\u00a0<\/p>\n\n\n\n<p>As we know, 3-digit numbers are smaller than 4-digit numbers.<\/p>\n\n\n\n<p>So, the smallest number is 571 followed by 847.\u00a0<\/p>\n\n\n\n<p>The greatest number among the 4-digit numbers is 9754 followed by 8320.<\/p>\n\n\n\n<p>So, in ascending order:\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>571, 847, 8320, 9754<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Q 3. Put commas in the following number according to the Indian and International numeric systems. Also, write how this number will be called out based on these two numeric systems. 22546798<\/strong><\/p>\n\n\n\n<p><strong>Ans. <\/strong>As we know in the Indian Numeric System, we mark thousands, lakhs and crores. So, the commas and name of the given number will be:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>2,25,46,798<\/td><td>Two crores twenty-five lakhs forty-six thousand seven hundred ninety-eight<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>However, in the International Numeric System, we mark thousands and then millions. So, the commas and name of the given number will be:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>22,546,798<\/td><td>Twenty-two million five hundred forty-six thousand seven hundred ninety-eight<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-pale-cyan-blue-background-color has-background\"><strong>Also Read: <a href=\"https:\/\/leverageedu.com\/blog\/multiplication-and-division-word-problems\/\">Multiplications and Division Word Problems<\/a><\/strong><\/p>\n\n\n\n<p><strong>Q 4. The population of Sundarnagar was 2,35,471 in the year 1991. In the<\/strong><\/p>\n\n\n\n<p><strong>year 2001, it was found to be increased by 72,958. What was the population of<\/strong><\/p>\n\n\n\n<p><strong>the city in 2001?<\/strong><\/p>\n\n\n\n<p><strong>Ans. <\/strong>In 2001, the population of Sundarnagar increased by 72,958 than it was in 1991.\u00a0<\/p>\n\n\n\n<p>Population of Sundarnagar in 1991 =\u00a0 2,35,471<\/p>\n\n\n\n<p>Hence, the total population of Sundarnagar in 2001 =\u00a0 2,35,471 + 72,958 = 3,08,429<\/p>\n\n\n\n<p><strong>Q 5. The number of sheets of paper available for making notebooks is<\/strong><\/p>\n\n\n\n<p><strong>75,000. Each sheet makes 8 pages of a notebook. Each notebook contains<\/strong><\/p>\n\n\n\n<p><strong>200 pages. How many notebooks can be made from the paper available?<\/strong><\/p>\n\n\n\n<p><strong>Ans. <\/strong>Since one sheet of paper makes 8 pages.<\/p>\n\n\n\n<p>75,000 sheets of paper will make = 75,000 \u2715 8 pages = 6,00,000 pages<\/p>\n\n\n\n<p>Now, each notebook contains 200 pages.\u00a0<\/p>\n\n\n\n<p>So, the number of notebooks prepared from 6,00,000 pages = 6,00,000 \u00f7 200 = 3000 notebooks.\u00a0<\/p>\n\n\n\n<p>Hence, 75,000 sheets of paper will make 3000 notebooks.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/1LqzTjK3SNMbu1FKQYc8058dg3Bi_5eVn\/view?usp=sharing\"><strong>Download CBSE Class 6 NCERT Maths Chapter 1 Notes and Important Questions Free PDF<\/strong><\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-medium-font-size wp-elements-ad7d682c27e3e1dfcceab5e202ea5e6f\"><strong>Explore Notes of All subjects of CBSE Class 6:-<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-pale-ocean-gradient-background has-background\"><tbody><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-ncert-notes-class-6-english\/\"><strong>CBSE NCERT Notes Class 6 English<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-notes-for-history\/\"><strong>CBSE NCERT Notes Class 6 History\u00a0<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-notes-class-6-geography\/\"><strong>CBSE NCERT Notes Class 6 Geography<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-notes-class-6-civics\/\"><strong>CBSE\u00a0 NCERTNotes Class 6 Civics<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-maths-notes\/\"><strong>CBSE NCERT Notes Class 6 Mathematics<\/strong><\/a><\/td><td><a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-notes-class-6-science\/\"><strong>CBSE Notes of Class 6 Science<\/strong><\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>This was all about CBSE Class 6 NCERT Maths Chapter 1 Notes and Important Questions: Knowing Our Numbers Free PDF Download. Follow the <a href=\"https:\/\/leverageedu.com\/discover\/school-education\/cbse-class-6-maths-notes\/\"><strong>CBSE Class 6 Maths Notes<\/strong><\/a> for more such chapter notes and important questions and answers for preparation for CBSE Class 6 Maths.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"As the name suggests, chapter 1 of CBSE NCERT Maths for Class 6 deals with the study of&hellip;\n","protected":false},"author":70,"featured_media":788613,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[477,389],"tags":[],"class_list":{"0":"post-788611","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ncert-study-material","8":"category-school-education"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NCERT Class 6 Maths Chapter 1 &#039;Knowing Our Numbers&#039;: Notes and Solutions (Free PDF) | Leverage Edu Discover<\/title>\n<meta name=\"description\" content=\"Class 6 NCERT Maths Chapter 1 introduces the concept of prime numbers, composite numbers. 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