{"id":918,"date":"2021-06-17T12:41:00","date_gmt":"2021-06-17T12:41:00","guid":{"rendered":"https:\/\/obsidianeducation.wordpress.com\/2021\/06\/17\/mental-math-part-3-adding-two-digit-numbers\/"},"modified":"2025-01-06T05:41:54","modified_gmt":"2025-01-06T05:41:54","slug":"mental-math-part-3-adding-two-digit-numbers","status":"publish","type":"post","link":"https:\/\/obsidiansofteducation.com\/index.php\/2021\/06\/17\/mental-math-part-3-adding-two-digit-numbers\/","title":{"rendered":"Mental Math Part 3 – Adding Two-Digit Numbers"},"content":{"rendered":"

This is part 3 of my Mental Math worksheets:<\/span><\/p>\n

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If you are a regular visitor of my website, you might know that I have developed a Mental Math mobile app<\/b><\/span><\/a>. It is available on Google Play Store and it is 100% Free. I also publish video tutorials<\/b><\/span> on the concepts and tricks taught in this app. Now, this app provides unlimited practice and you can practice even with a timer so you can easily become faster at mental math but I do know that some people like practicing on paper so this is why I started making these Mental Math worksheets.<\/span><\/p>\n

These worksheets correspond to Class #5<\/span> of my Mental Math series on my YouTube Channel.<\/span><\/p>\n

https:\/\/www.youtube.com\/watch?v=eMWlBeRXqAc<\/span><\/a><\/div>\n
However, I have tried to make these worksheets independent of the tutorials by giving quite a lot of detail about the mental math tricks in them. I hope you like this effort. Have a look at my mental math app too where it all started \ud83d\ude00.\u00a0<\/b><\/span><\/div>\n
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The worksheets have a lot of questions for practice. I have explained two tricks to solve two-digit number addition sums in your brain. You can practice and discover which trick you are more comfortable doing. Happy Learning!<\/span><\/p>\n<\/div>\n

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Download PDF<\/a><\/span><\/b><\/p>\n

Part 1 Adding and Subtracting Single Digit Numbers<\/span><\/a><\/b><\/p>\n

Part 2\u00a0Adding and Subtracting Single Digit Number from a Two-Digit Number<\/span><\/a><\/b><\/p>\n

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Please like my Facebook page and Instagram page for more educational resources and tips.<\/span><\/span><\/div>\n

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Facebook:<\/b> <\/span>https:\/\/www.facebook.com\/ObsidianSoft\/<\/a><\/span><\/span><\/span><\/div>\n
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Pinterest:\u00a0<\/strong>https:\/\/www.pinterest.com\/obsidiansoft\/<\/a><\/div>\n<\/div>\n
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For links to free educational apps, have a look at the\u00a0<\/span>educational apps page<\/a><\/span><\/div>\n
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Subscribe to my\u00a0YouTube Channel<\/b>\u00a0for educational videos for coding, mental maths, and phonics:\u00a0<\/span><\/div>\n
https:\/\/www.youtube.com\/c\/obsidiansofteducation<\/span><\/a><\/span><\/span><\/span><\/div>\n
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Special thanks to:<\/span><\/span><\/span><\/div>\n
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This is part 3 of my Mental Math worksheets: If you are a regular visitor of my website, you might know that I have developed a Mental Math mobile app. It is available on Google Play Store and it is 100% Free. I also publish video tutorials on the concepts and tricks taught in this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[44,45,51,53,54],"class_list":["post-918","post","type-post","status-publish","format-standard","hentry","category-worksheets","tag-grade1","tag-grade2","tag-logic-building","tag-mathematics","tag-mental-math","entry"],"_links":{"self":[{"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/posts\/918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/comments?post=918"}],"version-history":[{"count":1,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/posts\/918\/revisions"}],"predecessor-version":[{"id":5804,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/posts\/918\/revisions\/5804"}],"wp:attachment":[{"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/media?parent=918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/categories?post=918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obsidiansofteducation.com\/index.php\/wp-json\/wp\/v2\/tags?post=918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}