{"id":72,"date":"2022-04-12T04:42:47","date_gmt":"2022-04-12T04:42:47","guid":{"rendered":"http:\/\/4thclass.deltapublications.in\/?page_id=72"},"modified":"2025-11-04T07:15:07","modified_gmt":"2025-11-04T07:15:07","slug":"d-4-multiply-1-digit-numbers-by-2-digit-numbers","status":"publish","type":"page","link":"https:\/\/4thclass.deltapublications.in\/index.php\/d-4-multiply-1-digit-numbers-by-2-digit-numbers\/","title":{"rendered":"D.4 Multiply 1-digit numbers by 2-digit numbers"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-huge-font-size\" style=\"color:#00056d;text-transform:uppercase\"><strong> Multiply one-digit numbers by two-digit numbers<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-3bb528f8a495352df6b7cec5c790af0c\" style=\"color:#74008b\">Key points :<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83c\udfaf <strong>What Does It Mean?<\/strong><\/h2>\n\n\n\n<p>Multiplying a <strong>1-digit number<\/strong> (like 2, 3, 5, 7) by a <strong>2-digit number<\/strong> (like 12, 25, 48) means <strong>repeated addition<\/strong>.<\/p>\n\n\n\n<p>Example:<br>3 \u00d7 24 = 24 + 24 + 24 \u2705<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83e\udde0 <strong>Steps to Multiply (Simple Method)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\u270f\ufe0f <strong>1. Multiply Ones Place First<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiply the <strong>ones digit<\/strong> of the 2-digit number by the 1-digit number<br>Example:<br>3 \u00d7 27<br>Step 1: 3 \u00d7 7 = <strong>21<\/strong> \u2192 write <strong>1<\/strong>, carry <strong>2<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\u270f\ufe0f <strong>2. Multiply Tens Place<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiply the <strong>tens digit<\/strong> with the 1-digit number and <strong>add the carry<\/strong><br>Step 2: 3 \u00d7 2 = 6<br>6 + 2 (carry) = <strong>8<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-normal-font-size\">\u2705 Final Answer: <strong>81<\/strong><\/h3>\n\n\n\n<p>So, 3 \u00d7 27 = <strong>81<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83d\udd22 <strong>Example Problems<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Question<\/th><th>Working<\/th><th>Answer<\/th><\/tr><\/thead><tbody><tr><td>4 \u00d7 23<\/td><td>(4 \u00d7 3 = 12) \u2192 2, carry 1<br>(4 \u00d7 2 = 8 +1 = 9)<\/td><td><strong>92<\/strong><\/td><\/tr><tr><td>6 \u00d7 14<\/td><td>(6 \u00d7 4 = 24) \u2192 4, carry 2<br>(6 \u00d7 1 = 6 +2 = 8)<\/td><td><strong>84<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83e\uddee <strong>Why Learn This?<\/strong><\/h2>\n\n\n\n<p>\u2714 Helps in bigger multiplication<br>\u2714 Useful in daily life (money, shopping, counting items)<br>\u2714 Builds strong math skills<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83c\udfc6 <strong>Tips &amp; Tricks<\/strong><\/h2>\n\n\n\n<p>\u2728 <strong>Tip 1:<\/strong> Practice with tables (1 to 9) to make it easy<br>\u2728 <strong>Tip 2:<\/strong> Always multiply from the <strong>ones place<\/strong><br>\u2728 <strong>Tip 3:<\/strong> Don\u2019t forget to <strong>add the carry<\/strong><br>\u2728 <strong>Tip 4:<\/strong> Check your answer using <strong>estimation<\/strong><\/p>\n\n\n\n<p>Example:<br>7 \u00d7 29 \u2248 7 \u00d7 30 = 210 (approx)<br>Actual answer: 203<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\ud83c\udf08 <strong>Fun Shortcut<\/strong><\/h2>\n\n\n\n<p>If the 2-digit number ends in <strong>0<\/strong>, multiply the 1st number and <strong>add a zero<\/strong>.<\/p>\n\n\n\n<p>Example:<br>6 \u00d7 30 = 6 \u00d7 3 = 18 \u2192 <strong>180<\/strong><\/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-large-font-size\" style=\"background-color:#ccd4f6\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color has-link-color wp-elements-aec9631eb7e95d4eecf2ab4d3a431cea\" style=\"color:#b00012\">\ud83c\udfaf Multiply.<\/p>\n\n\n\n<p>11 x 6 =___<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiply&nbsp;the&nbsp;ones.\n<ul class=\"wp-block-list\">\n<li>11 x 6 = 6<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Multiply&nbsp;the&nbsp;tens.\n<ul class=\"wp-block-list\">\n<li>11 x 6 = 66<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>The&nbsp;product is<strong>&nbsp;66<\/strong>.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#f7cfcf\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color has-link-color wp-elements-c1e34dabc5be7391f01ed581e7baa437\" style=\"color:#b00012\"><br>\ud83c\udfaf Multiply.<\/p>\n\n\n\n<p>11 x 3 =___<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiply&nbsp;the&nbsp;ones.\n<ul class=\"wp-block-list\">\n<li>11 x 3 = 3<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Multiply&nbsp;the&nbsp;tens.\n<ul class=\"wp-block-list\">\n<li>11 x 3 = 33<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>The&nbsp;product is&nbsp;<strong>33.<\/strong><\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#daf5f4\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color has-link-color wp-elements-8294955886926f9f0bb414de1bbe27ff\" style=\"color:#b00012\">\ud83c\udfafMultiply.<\/p>\n\n\n\n<p>11 x 8 =___<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiply&nbsp;the&nbsp;ones.\n<ul class=\"wp-block-list\">\n<li>11 x 8 = 8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Multiply&nbsp;the&nbsp;tens.\n<ul class=\"wp-block-list\">\n<li>11 x 8 = 88<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>The&nbsp;product is<strong>&nbsp;88.<\/strong><\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!\ud83d\udd8a\ufe0f<\/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\/76809\/320\/564\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-204.png\" alt=\"\" class=\"wp-image-6884\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-204.png 500w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-204-300x300.png 300w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-204-150x150.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\/30316\/574\/531\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-195.png\" alt=\"\" class=\"wp-image-6885\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-195.png 500w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-195-300x300.png 300w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-195-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Multiply one-digit numbers by two-digit numbers Key points : \ud83c\udfaf What Does It Mean? Multiplying a 1-digit number (like 2, 3, 5, 7) by a 2-digit number (like 12, 25, 48) means repeated addition. Example:3 \u00d7 24 = 24 + 24 + 24 \u2705 \ud83e\udde0 Steps to Multiply (Simple Method) \u270f\ufe0f 1. Multiply Ones Place<a class=\"more-link\" href=\"https:\/\/4thclass.deltapublications.in\/index.php\/d-4-multiply-1-digit-numbers-by-2-digit-numbers\/\">Continue reading <span class=\"screen-reader-text\">&#8220;D.4 Multiply 1-digit numbers by 2-digit numbers&#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-72","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/72","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=72"}],"version-history":[{"count":19,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/72\/revisions"}],"predecessor-version":[{"id":16634,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/72\/revisions\/16634"}],"wp:attachment":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=72"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}