{"id":57,"date":"2022-04-12T05:56:49","date_gmt":"2022-04-12T05:56:49","guid":{"rendered":"http:\/\/5thclass.deltapublications.in\/?page_id=57"},"modified":"2025-09-10T06:36:02","modified_gmt":"2025-09-10T06:36:02","slug":"c-8-estimate-products","status":"publish","type":"page","link":"https:\/\/5thclass.deltapublications.in\/index.php\/c-8-estimate-products\/","title":{"rendered":"C.8 Estimate products"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Estimate products<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/08\/C.8-Estimate-products.mp4\"><\/video><\/figure>\n\n\n\n<p class=\"has-text-color has-link-color has-normal-font-size wp-elements-dc9f2062250cad58715a9ff7706d72c1\" style=\"color:#74008b\"><strong>Key notes :<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 What is Estimation?<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Estimation means finding a number close to the exact answer. It helps us do calculations quickly and check if our answers make sense.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 Estimating Products<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>When we <strong>estimate products<\/strong>, we do not multiply exactly. Instead, we round the numbers to the nearest <strong>tens, hundreds, or thousands<\/strong>, and then multiply.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 Steps to Estimate Products<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Look at the numbers.<\/strong><\/li>\n\n\n\n<li><strong>Round each number<\/strong> to the nearest 10, 100, or 1000.<\/li>\n\n\n\n<li><strong>Multiply the rounded numbers.<\/strong><\/li>\n\n\n\n<li>The answer is the <strong>estimated product<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 Examples<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li><strong>Exact multiplication:<\/strong><\/li>\n\n\n\n<li>47\u00d732=150447 \\times 32 = 150447\u00d732=1504 <strong>Estimation:<\/strong><\/li>\n\n\n\n<li>Round 47\u22485047 \\approx 5047\u224850, 32\u22483032 \\approx 3032\u224830<\/li>\n\n\n\n<li>50\u00d730=150050 \\times 30 = 150050\u00d730=1500 \u2705 Estimated product = <strong>1500<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li><strong>Example with larger numbers:<\/strong><\/li>\n\n\n\n<li>456\u00d7298456 \\times 298456\u00d7298 Round 456\u2248500456 \\approx 500456\u2248500, 298\u2248300298 \\approx 300298\u2248300<\/li>\n\n\n\n<li>500\u00d7300=150,000500 \\times 300 = 150,000500\u00d7300=150,000 \u2705 Estimated product = <strong>150,000<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 Why is Estimating Products Important?<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-normal-font-size\">\u2714 Saves time in daily life.<br>\u2714 Helps in mental math.<br>\u2714 Useful for checking if exact answers are reasonable.<br>\u2714 Needed in shopping, budgeting, construction, and measurements.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000060\"><tbody><tr><td><strong>\ud83d\udd39 Quick Practice<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Estimate the following:<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>68\u00d74168 \\times 4168\u00d741<\/li>\n\n\n\n<li>123\u00d7397123 \\times 397123\u00d7397<\/li>\n\n\n\n<li>789\u00d7212789 \\times 212789\u00d7212<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\ud83d\udc49 <strong>Key Tip:<\/strong> Always round numbers to the place value that makes multiplication easier.<\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-large-font-size\" style=\"color:#105000\"><strong>Learn with an example<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-background has-normal-font-size\" style=\"background-color:#f7c8f6\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-color has-text-color\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-primary-color has-text-color\"><strong>\ud83d\ude00 Estimate the product. Round each factor to the nearest ten, then multiply.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color\" style=\"color:#d90000\"><strong>25 \u00d7 21<\/strong><\/p>\n\n\n\n<p class=\"has-text-color\" style=\"color:#d90000\"><strong>The product is approximately ________.<\/strong><\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-background-background-color has-text-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Round the first factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"180\" height=\"109\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-36.png\" alt=\"\" class=\"wp-image-12643\"\/><\/figure>\n\n\n\n<p>Round the second factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"209\" height=\"140\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-37.png\" alt=\"\" class=\"wp-image-12644\"\/><\/figure>\n\n\n\n<p><strong>Now multiply:<\/strong><\/p>\n\n\n\n<p>30 \u00d7 20 = 600<\/p>\n\n\n\n<p>The product is approximately 600.<\/p>\n\n\n\n<p>Compare your estimate to the exact answer:<\/p>\n\n\n\n<p>25 \u00d7 21 = 525<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-normal-font-size\" style=\"background-color:#c8f7f4\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p><strong>\ud83d\ude00<\/strong> <strong>Estimate the product. Round each factor to the nearest ten, then multiply.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color\" style=\"color:#d90000\"><strong>36 \u00d7 76<\/strong><\/p>\n\n\n\n<p class=\"has-text-color\" style=\"color:#d90000\"><strong>The product is approximately&nbsp;_______.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Round the first factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"213\" height=\"108\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-38.png\" alt=\"\" class=\"wp-image-12647\"\/><\/figure>\n\n\n\n<p>Round the second factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"209\" height=\"123\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-39.png\" alt=\"\" class=\"wp-image-12648\"\/><\/figure>\n\n\n\n<p class=\"has-primary-color has-text-color\">Now multiply:<\/p>\n\n\n\n<p>40 \u00d7 80 = 3,200<\/p>\n\n\n\n<p>The product is approximately 3,200.<\/p>\n\n\n\n<p>Compare your estimate to the exact answer:<\/p>\n\n\n\n<p>36 \u00d7 76 = 2,736<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-normal-font-size\" style=\"background-color:#e7c8f7\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p><strong>\ud83d\ude00<\/strong> <strong>Estimate the product. Round each factor to the nearest ten, then multiply.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color\" style=\"color:#d90000\"><strong>35 \u00d7 59<\/strong><\/p>\n\n\n\n<p class=\"has-text-color\" style=\"color:#d90000\"><strong>The product is approximately ________.<\/strong><\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-background-background-color has-text-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Round the first factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"213\" height=\"107\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-40.png\" alt=\"\" class=\"wp-image-12649\"\/><\/figure>\n\n\n\n<p>Round the second factor to the nearest ten.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"227\" height=\"120\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/08\/image-41.png\" alt=\"\" class=\"wp-image-12650\"\/><\/figure>\n\n\n\n<p>Now multiply:<\/p>\n\n\n\n<p>40 \u00d7 60 = 2,400<\/p>\n\n\n\n<p>The product is approximately 2,400.<\/p>\n\n\n\n<p>Compare your estimate to the exact answer:<\/p>\n\n\n\n<p>35 \u00d7 59 = 2,065<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/76095\/930\/865\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-107.png\" alt=\"\" class=\"wp-image-5934\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-107.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-107-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-107-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/76364\/455\/208\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-109.png\" alt=\"\" class=\"wp-image-5935\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-109.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-109-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-109-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Estimate products Key notes : \ud83d\udd39 What is Estimation? Estimation means finding a number close to the exact answer. It helps us do calculations quickly and check if our answers make sense. \ud83d\udd39 Estimating Products When we estimate products, we do not multiply exactly. Instead, we round the numbers to the nearest tens, hundreds, or<a class=\"more-link\" href=\"https:\/\/5thclass.deltapublications.in\/index.php\/c-8-estimate-products\/\">Continue reading <span class=\"screen-reader-text\">&#8220;C.8 Estimate products&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-57","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=57"}],"version-history":[{"count":21,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/57\/revisions"}],"predecessor-version":[{"id":15699,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/57\/revisions\/15699"}],"wp:attachment":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}