{"id":326,"date":"2022-04-11T05:50:28","date_gmt":"2022-04-11T05:50:28","guid":{"rendered":"http:\/\/2ndclass.deltapublications.in\/?page_id=326"},"modified":"2026-03-24T09:06:33","modified_gmt":"2026-03-24T09:06:33","slug":"s-2-addition-and-subtraction-ways-to-make-a-number-up-to-20","status":"publish","type":"page","link":"https:\/\/2ndclass.deltapublications.in\/index.php\/s-2-addition-and-subtraction-ways-to-make-a-number-up-to-20\/","title":{"rendered":"S.2 Addition and subtraction &#8211; ways to make a number &#8211; up to 20"},"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> Addition and subtraction &#8211; ways to make a number &#8211; up to 20<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-56c84c059217f437e58cf956c8febe7c\" style=\"color:#387510\"><strong>key notes :<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83c\udf1f Understanding Numbers up to 20<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Numbers from <strong>0 to 20<\/strong> can be made using different combinations.<\/li>\n\n\n\n<li>Example: <strong>10<\/strong> can be made as<br>\u2192 5 + 5<br>\u2192 6 + 4<br>\u2192 7 + 3<\/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 Making Numbers Using Addition<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Addition means <strong>putting numbers together<\/strong>.<\/li>\n\n\n\n<li>We can make the same number in many ways.<\/li>\n<\/ul>\n\n\n\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>8 = 4 + 4<\/li>\n\n\n\n<li>8 = 5 + 3<\/li>\n\n\n\n<li>8 = 6 + 2<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 One number \u2192 <strong>many addition pairs<\/strong><\/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\">\u2796 Making Numbers Using Subtraction<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Subtraction means <strong>taking away<\/strong>.<\/li>\n\n\n\n<li>We can also make numbers by subtracting.<\/li>\n<\/ul>\n\n\n\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>8 = 10 \u2212 2<\/li>\n\n\n\n<li>8 = 9 \u2212 1<\/li>\n\n\n\n<li>8 = 12 \u2212 4<\/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\">\ud83d\udd04 Fact Families (Addition &amp; Subtraction Together)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Addition and subtraction are <strong>related<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example (for 6, 2, 4):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2 + 4 = 6<\/li>\n\n\n\n<li>4 + 2 = 6<\/li>\n\n\n\n<li>6 \u2212 2 = 4<\/li>\n\n\n\n<li>6 \u2212 4 = 2<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 These are called a <strong>fact family<\/strong><\/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\">\ud83d\udd22 Number Bonds<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A number bond shows how a number is <strong>split into two parts<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>10 \u2192 7 + 3<\/li>\n\n\n\n<li>10 \u2192 6 + 4<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 Helps students see parts and whole<\/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\">\ud83e\udde0 Use of Fingers, Objects, and Number Line<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use <strong>fingers, beads, or toys<\/strong> to count.<\/li>\n\n\n\n<li>Use a <strong>number line (0\u201320)<\/strong> to add or subtract.<\/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\udfaf Important Tips<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Start from <strong>bigger number<\/strong> while adding.<\/li>\n\n\n\n<li>Count <strong>forward for addition<\/strong>, <strong>backward for subtraction<\/strong>.<\/li>\n\n\n\n<li>Practice <strong>number pairs that make 10 and 20<\/strong>.<\/li>\n<\/ul>\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\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#9fcef4\"><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-936bee6988ac3a2c0c5df6f17b49c3b5\" style=\"color:#b00012\"><strong>\ud83c\udfaf Select all of the ways to make 18.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>7 + 11<\/li>\n\n\n\n<li> 14 + 6 <\/li>\n\n\n\n<li>10 + 9 <\/li>\n\n\n\n<li>19 \u2212 1<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These are ways to make 18:<\/li>\n\n\n\n<li>7 + 11 = 18<br>19 \u2212 1 = 18<\/li>\n\n\n\n<li>These are not ways to make 18:<\/li>\n\n\n\n<li>14 + 6 = 20<br>10 + 9 = 19<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#f0a8a8\"><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-f36180a8effb92b2eb5902be0e822b76\" style=\"color:#b00012\">\ud83c\udfaf <strong>Select all of the ways to make 15.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>18 \u2212 3 <\/li>\n\n\n\n<li>1 + 14<\/li>\n\n\n\n<li> 10 + 5<\/li>\n\n\n\n<li> 16 \u2212 1<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These are ways to make 15:<\/li>\n\n\n\n<li>18 \u2212 3 = 15<br>1 + 14 = 15<br>10 + 5 = 15<br>16 \u2212 1 = 15<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#c2a1ea\"><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-949fe906befa188a8bfd804a36d53558\" style=\"color:#b00012\">\ud83c\udfaf<strong> How do you make 14?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0 + 15 <\/li>\n\n\n\n<li>16 \u2212 2 <\/li>\n\n\n\n<li>9 + 6 <\/li>\n\n\n\n<li>0 + 13<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This is a way to make 14:<\/li>\n\n\n\n<li>16 \u2212 2 = 14<\/li>\n\n\n\n<li>These are not ways to make 14:<\/li>\n\n\n\n<li>0 + 15 = 15<br>9 + 6 = 15<br>0 + 13 = 13<\/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\/86019\/874\/931\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-66.png\" alt=\"\" class=\"wp-image-6722\" srcset=\"https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-66.png 500w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-66-300x300.png 300w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-66-150x150.png 150w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-3-66-400x400.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\/86014\/836\/587\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-66.png\" alt=\"\" class=\"wp-image-6723\" srcset=\"https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-66.png 500w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-66-300x300.png 300w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-66-150x150.png 150w, https:\/\/2ndclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-2-66-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Addition and subtraction &#8211; ways to make a number &#8211; up to 20 key notes : \ud83c\udf1f Understanding Numbers up to 20 \u2795 Making Numbers Using Addition Examples: \ud83d\udc49 One number \u2192 many addition pairs \u2796 Making Numbers Using Subtraction Examples: \ud83d\udd04 Fact Families (Addition &amp; Subtraction Together) Example (for 6, 2, 4): \ud83d\udc49 These<a class=\"more-link\" href=\"https:\/\/2ndclass.deltapublications.in\/index.php\/s-2-addition-and-subtraction-ways-to-make-a-number-up-to-20\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S.2 Addition and subtraction &#8211; ways to make a number &#8211; up to 20&#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":{"footnotes":""},"class_list":["post-326","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=326"}],"version-history":[{"count":12,"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/326\/revisions"}],"predecessor-version":[{"id":22949,"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/326\/revisions\/22949"}],"wp:attachment":[{"href":"https:\/\/2ndclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}