{"id":33,"date":"2022-04-12T05:52:32","date_gmt":"2022-04-12T05:52:32","guid":{"rendered":"http:\/\/5thclass.deltapublications.in\/?page_id=33"},"modified":"2025-09-06T05:33:03","modified_gmt":"2025-09-06T05:33:03","slug":"b-5-choose-numbers-with-a-particular-sum-or-difference","status":"publish","type":"page","link":"https:\/\/5thclass.deltapublications.in\/index.php\/b-5-choose-numbers-with-a-particular-sum-or-difference\/","title":{"rendered":"B.5 Choose numbers with a particular sum or difference"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Choose numbers with a particular sum or difference<\/strong><\/h2>\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\" style=\"flex-basis:100%\">\n<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAGwhH6Wg_A\/JW5vkGjDuMEujGjjdFIv8A\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAGwhH6Wg_A&#x2F;JW5vkGjDuMEujGjjdFIv8A&#x2F;watch?utm_content=DAGwhH6Wg_A&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">Class-5 Topic: choose numbers with a particular sum or difference<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong>Key notes <\/strong> :<\/p>\n\n\n\n<div class=\"wp-block-group has-normal-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-table has-normal-font-size\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000020\"><tbody><tr><td>\ud83e\udde8<strong> Understanding the Concept<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Sum<\/strong>: The result of adding two or more numbers together.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Example<\/strong>: The sum of 8 and 7 is 8+7=15<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Difference<\/strong>: The result of subtracting one number from another.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Example<\/strong>: The difference between 12 and 5 is 12\u22125=7<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table has-normal-font-size\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000020\"><tbody><tr><td>\ud83c\udf89<strong>Identifying the Task<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Choosing Numbers<\/strong>: The goal is to select pairs or sets of numbers that, when added or subtracted, result in a specified sum or difference.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Example (Sum)<\/strong>: Choose two numbers that add up to 20. (Possible pairs: 12 and 8, 15 and 5, etc.)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Example (Difference)<\/strong>: Choose two numbers where the difference is 6. (Possible pairs: 14 and 8, 20 and 14, etc.)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table has-normal-font-size\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000020\"><tbody><tr><td>\ud83c\udf8a<strong> Strategies for Finding the Right Numbers<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Addition Strategy<\/strong>:<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Start with the Desired Sum<\/strong>: Determine the target sum.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a sum of 18, think of pairs like 10+8 or 12+6<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Use Known Facts<\/strong>: Recall basic addition facts to find pairs quickly.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a sum of 15, use 7+8 or 10+5.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Subtraction Strategy<\/strong>:<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Start with the Larger Number<\/strong>: Begin with a number and subtract smaller numbers to find the correct difference.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a difference of 7, use 14\u22127 or 20\u221213<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Consider Multiple Options<\/strong>: There are often several correct answers, especially if using larger numbers.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a difference of 9, you could use 18\u22129, 20\u221211, or 30\u221221.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Using Number Bonds<\/strong>:<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Number Bonds<\/strong>: Understanding pairs of numbers that add up to a certain number helps in quickly identifying sums.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: Number bonds for 10 include 1+9, 2+8, 3+7 etc.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Apply to Larger Sums<\/strong>: Extend this concept to larger numbers by adjusting the tens and units.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a sum of 25, consider 20+5, 18+7, or 15+10.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Visualization with Number Lines<\/strong>:<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Addition on a Number Line<\/strong>: Start at one number and move right to reach the sum.<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Subtraction on a Number Line<\/strong>: Start at the larger number and move left to find the difference.<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Using Mental Math<\/strong>:<\/p>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Estimate and Adjust<\/strong>: Start with numbers close to what you think might work, then adjust by adding or subtracting.<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Example: For a sum of 30, try 20+10and adjust if needed.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table has-normal-font-size\"><table class=\"has-text-color has-link-color has-fixed-layout\" style=\"color:#000020\"><tbody><tr><td>\ud83c\udf87 Practice with Examples<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Sum Examples<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-normal-font-size\">Choose two numbers with a sum of 50.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-normal-font-size\">Possible Answers: 25+25, 30+20, 40+10.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Choose three numbers with a sum of 60.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Possible Answers: 20+20+20, 30+15+15, 25+25+10<\/li>\n<\/ul>\n\n\n\n<p class=\"has-normal-font-size\"><strong>Difference Examples<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Choose two numbers with a difference of 9.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Possible Answers: 18\u22129, 20\u221211, 25\u221216.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Choose two numbers with a difference of 15.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list has-normal-font-size\">\n<li>Possible Answers: 30\u221215, 40\u221225, 20\u22125.<\/li>\n<\/ul>\n<\/div><\/div>\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-normal-font-size\" style=\"background-color:#b5ed99\"><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-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color\" style=\"color:#b00012\"><strong>\ud83d\uddfc Choose two numbers from the box to complete the subtraction number sentence .<\/strong><\/p>\n\n\n\n<p><strong>64  331  366  699<\/strong><\/p>\n\n\n\n<p>____ &#8211; _____ = 35<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Look for numbers in the box that are greater than 35.<\/li>\n\n\n\n<li>Try 64. What number can you subtract from 64 to get 35?<\/li>\n\n\n\n<li>64 \u2212 29 = 35<br>29 is not in the box.<\/li>\n\n\n\n<li>Try 331. What number can you subtract from 331 to get 35?<\/li>\n\n\n\n<li>331 \u2212 296 = 35<br>296 is not in the box.<\/li>\n\n\n\n<li>Try 366. What number can you subtract from 366 to get 35?<\/li>\n\n\n\n<li>366 \u2212 331 = 35<br>331 is in the box.<\/li>\n\n\n\n<li>The subtraction number sentence is 366 \u2212 331 = 35.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-normal-font-size\" style=\"background-color:#b6b2f3\"><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-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color\" style=\"color:#b00012\"><strong>\ud83d\uddfc Choose two numbers from the box to complete the sentence .<\/strong><\/p>\n\n\n\n<p><strong>3  42  59  68<\/strong><\/p>\n\n\n\n<p>___ and ___ have a sum of 71 .<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Try 3. What number can you add to 3 to get 71?<\/li>\n\n\n\n<li>3 + 68 = 71<br>68 is in the box.<\/li>\n\n\n\n<li>The numbers 3 and 68 have a sum of 71.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-normal-font-size\" style=\"background-color:#aaf9d9\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\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 class=\"has-text-color\" style=\"color:#b00012\"><strong>\ud83d\uddfc Choose two numbers from the box to complete the addition number sentence.<\/strong><\/p>\n\n\n\n<p>2  5  89  306<\/p>\n\n\n\n<p>___ + ____ = 308<\/p>\n<\/div><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Try 2. What number can you add to 2 to get 308?<\/li>\n\n\n\n<li>2 + 306 = 308<\/li>\n\n\n\n<li>306 is in the box.<\/li>\n\n\n\n<li>The addition number sentence is 2 + 306 = 308.<\/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!<\/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\/95622\/908\/998\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-68.png\" alt=\"\" class=\"wp-image-5791\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-68.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-68-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-2-68-150x150.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\/30485\/774\/353\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-68.png\" alt=\"\" class=\"wp-image-5792\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-68.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-68-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/04\/Worksheet-1-1-1-68-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Choose numbers with a particular sum or difference Class-5 Topic: choose numbers with a particular sum or difference by Delta publications Key notes : \ud83e\udde8 Understanding the Concept Sum: The result of adding two or more numbers together. Difference: The result of subtracting one number from another. \ud83c\udf89Identifying the Task Choosing Numbers: The goal is<a class=\"more-link\" href=\"https:\/\/5thclass.deltapublications.in\/index.php\/b-5-choose-numbers-with-a-particular-sum-or-difference\/\">Continue reading <span class=\"screen-reader-text\">&#8220;B.5 Choose numbers with a particular sum or difference&#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-33","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/33","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=33"}],"version-history":[{"count":31,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/33\/revisions"}],"predecessor-version":[{"id":15639,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/33\/revisions\/15639"}],"wp:attachment":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}