{"id":11039,"date":"2024-05-21T07:29:35","date_gmt":"2024-05-21T07:29:35","guid":{"rendered":"https:\/\/1stclass.deltapublications.in\/?page_id=11039"},"modified":"2025-11-20T05:09:45","modified_gmt":"2025-11-20T05:09:45","slug":"f-2-add-using-doubles-plus-one","status":"publish","type":"page","link":"https:\/\/1stclass.deltapublications.in\/index.php\/f-2-add-using-doubles-plus-one\/","title":{"rendered":"F.2 Add using doubles plus one"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-544260244f5c1ebee6d2c4146fbb3f14\" style=\"color:#00056d;text-transform:uppercase\"><strong>Add using doubles plus one<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-c0afa955f23fdba64f9ed69a769b3762\" style=\"color:#74008b\"><strong>Key notes:-<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83d\udd22 <strong>What are Doubles?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Doubles are when we add the <strong>same number<\/strong> to itself.<br>\ud83d\udc49 Example: <strong>4 + 4 = 8<\/strong>, <strong>5 + 5 = 10<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\u2795 <strong>What is Doubles Plus One?<\/strong><\/h3>\n\n\n\n<p>When the second number is <strong>one more<\/strong> than the first number.<\/p>\n\n\n\n<p>Instead of adding normally, we can <strong>use the double<\/strong> and then <strong>add 1 more<\/strong>.<br>\ud83d\udc49 Example: <strong>4 + 5<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Double of 4 is <strong>8<\/strong><\/li>\n\n\n\n<li>Then add <strong>1 more<\/strong> \u2192 <strong>9<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83c\udf08 <strong>Why Use Doubles Plus One?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It makes adding <strong>faster<\/strong> and <strong>easier<\/strong>!<\/li>\n\n\n\n<li>Helps students solve addition facts <strong>mentally<\/strong>.<\/li>\n\n\n\n<li>Builds confidence in basic math skills.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83e\udde0 <strong>How to Spot a Doubles Plus One Fact<\/strong><\/h3>\n\n\n\n<p>Look for numbers like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3 + 4<\/li>\n\n\n\n<li>6 + 7<\/li>\n\n\n\n<li>8 + 9<br>The numbers are <strong>side-by-side<\/strong> (one bigger by 1).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\u2728 <strong>Steps to Solve (Super Easy!)<\/strong><\/h3>\n\n\n\n<p>1\ufe0f\u20e3 Find the <strong>smaller number<\/strong>.<br>2\ufe0f\u20e3 Double it.<br>3\ufe0f\u20e3 Add <strong>1 more<\/strong>!<\/p>\n\n\n\n<p>\ud83d\udc49 Example: <strong>7 + 8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Double 7 = <strong>14<\/strong><\/li>\n\n\n\n<li>Add 1 = <strong>15<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83c\udf4e <strong>Common Doubles Plus One Facts<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Problem<\/th><th>Think Double<\/th><th>Answer<\/th><\/tr><\/thead><tbody><tr><td>2 + 3<\/td><td>2 + 2 + 1<\/td><td>5<\/td><\/tr><tr><td>3 + 4<\/td><td>3 + 3 + 1<\/td><td>7<\/td><\/tr><tr><td>5 + 6<\/td><td>5 + 5 + 1<\/td><td>11<\/td><\/tr><tr><td>8 + 9<\/td><td>8 + 8 + 1<\/td><td>17<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83c\udfa8 <strong>Visual Reminder<\/strong><\/h3>\n\n\n\n<p>Doubles \u2192 twins \ud83d\udc6f<br>Doubles + 1 \u2192 twins with <strong>one extra friend<\/strong> \ud83d\ude0a<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83c\udf89 <strong>Practice Examples<\/strong><\/h3>\n\n\n\n<p>Try these using the doubles plus one trick:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>6 + 7<\/li>\n\n\n\n<li>4 + 5<\/li>\n\n\n\n<li>9 + 8<\/li>\n\n\n\n<li>1 + 2<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-link-color has-large-font-size wp-elements-3fefd20f8ce119a518e5f53333ab5486\" style=\"color:#105000\"><strong>Learn with an example<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-primary-color has-text-color has-background has-link-color has-large-font-size wp-elements-06da016c1251487e72da9cadfd93e0c9\" style=\"background-color:#b3cff6\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-background-background-color has-text-color has-background has-link-color wp-elements-eda5a86f3ede72e9e5345c8a9a2d49d8\" style=\"color:#b00012\">\ud83d\udd8a\ufe0f<strong>Add the near doubles.<\/strong><br>Hint: use the doubles fact 2 + 2 = 4.<br>2 + 3 =<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To add 2 + 3, you can use the strategy of doubles plus one. This is because 2 and 3 are near doubles.<\/li>\n\n\n\n<li>Break 3 into 2 + 1 to make double 2s.<\/li>\n\n\n\n<li>2 + 3 = 2 + 2 + 1<\/li>\n\n\n\n<li>Add the double 2s. Use the doubles fact 2 + 2 = 4.<\/li>\n\n\n\n<li>2 + 2 + 1 = 4 +1<\/li>\n\n\n\n<li>Add 1.<\/li>\n\n\n\n<li>4 + 1 = 5<\/li>\n\n\n\n<li>So, 2 + 3 = 5.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-text-color has-background has-link-color has-large-font-size wp-elements-c9330279f9adb650d3a59acb9a737460\" style=\"background-color:#a4f2b0\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-background-background-color has-text-color has-background has-link-color wp-elements-17571db696bec54c3866b4651f0169b1\" style=\"color:#b00012\">\ud83d\udd8a\ufe0f<strong>Add the near doubles.<\/strong><br>Hint: use the doubles fact 3 + 3 = 6.<br>3 + 4 =<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To add 3 + 4, you can use the strategy of doubles plus one. This is because 3 and 4 are near doubles.<\/li>\n\n\n\n<li>Break 4 into 3 + 1 to make double 3s.<\/li>\n\n\n\n<li>3 + 4 = 3 + 3 + 1<\/li>\n\n\n\n<li>Add the double 3s. Use the doubles fact 3 + 3 = 6.<\/li>\n\n\n\n<li>3 + 3 + 1 = 6 + 1<\/li>\n\n\n\n<li>Add 1.<\/li>\n\n\n\n<li>6 + 1 = 7<\/li>\n\n\n\n<li>So, 3 + 4 = 7.<\/li>\n\n\n\n<li>So, 2 + 3 = 5.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-text-color has-background has-link-color has-large-font-size wp-elements-4e94092188d2962497653cada51ffdf9\" style=\"background-color:#ade8f7\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-background-background-color has-text-color has-background has-link-color wp-elements-9c5a7894ec6834e1617ea9dd89d51515\" style=\"color:#b00012\">\ud83d\udd8a\ufe0f<strong>Add the near doubles.<\/strong><br>Hint: use the doubles fact 5 + 5 = 10.<br>5 + 6 =<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To add 5 + 6, you can use the strategy of doubles plus one. This is because 5 and 6 are near doubles.<\/li>\n\n\n\n<li>Break 6 into 5 + 1 to make double 5s.<\/li>\n\n\n\n<li>5 + 6 = 5 + 5 +1<\/li>\n\n\n\n<li>Add the double 5s. Use the doubles fact 5 + 5 = 10.<\/li>\n\n\n\n<li>5 + 5 + 1 = 10 + 1<\/li>\n\n\n\n<li>Add 1.<\/li>\n\n\n\n<li>10 + 1 = 11<\/li>\n\n\n\n<li>So, 5 + 6 = 11.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-217fbaf45806c03039c74b041b2ae589\" 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\/80168\/129\/641\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-2-214-31.png\" alt=\"\" class=\"wp-image-11763\" srcset=\"https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-2-214-31.png 500w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-2-214-31-300x300.png 300w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-2-214-31-150x150.png 150w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-2-214-31-400x400.png 400w\" 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\/29911\/038\/870\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-1-1-217-31.png\" alt=\"\" class=\"wp-image-11764\" srcset=\"https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-1-1-217-31.png 500w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-1-1-217-31-300x300.png 300w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-1-1-217-31-150x150.png 150w, https:\/\/1stclass.deltapublications.in\/wp-content\/uploads\/2024\/06\/Worksheet-1-1-1-217-31-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Add using doubles plus one Key notes:- \ud83d\udd22 What are Doubles? \u2795 What is Doubles Plus One? When the second number is one more than the first number. Instead of adding normally, we can use the double and then add 1 more.\ud83d\udc49 Example: 4 + 5 \ud83c\udf08 Why Use Doubles Plus One? \ud83e\udde0 How to<a class=\"more-link\" href=\"https:\/\/1stclass.deltapublications.in\/index.php\/f-2-add-using-doubles-plus-one\/\">Continue reading <span class=\"screen-reader-text\">&#8220;F.2 Add using doubles plus one&#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":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-11039","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/11039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=11039"}],"version-history":[{"count":17,"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/11039\/revisions"}],"predecessor-version":[{"id":19949,"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/11039\/revisions\/19949"}],"wp:attachment":[{"href":"https:\/\/1stclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=11039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}