Are you facing any difficulty in doing subtractions mentally? Then you have landed on the correct page where you will find plenty of strategies in the subtraction process. This article includes the tricks to do the subtractions mentally in the head very fast. These tricks save time in the competitive exams which are very helpful for the students. You can also check the solved examples of mental math subtraction for a better understanding of the concept.<\/p>\n
Also, refer:<\/p>\n
Here we will discuss the tricks for doing the subtractions mentally. Practicing these tricks will help you in doing subtractions mentally very fast and accurately. Use these tricks to do subtraction and sharpen your skills in Mathematics.<\/p>\n
Subtract the previous whole ten, then the rest. Break the subtrahend into its tens and ones. subtract in parts. since 13-6=7, we know that 53-6 will end in 7. But it will be in the forties something. So it is 47. Add First, subtract an easy and closer number and then correct the answer. It will work well for powers of 10. You can add the same number to the subtrahend and minuend for subtracting. Start subtracting from left to right one digit at a time. Borrow numbers when necessary. Are you facing any difficulty in doing subtractions mentally? Then you have landed on the correct page where you will find plenty of strategies in the subtraction process. This article includes the tricks to do the subtractions mentally in the head very fast. These tricks save time in the competitive exams which are very helpful … Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":112517,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/ccssanswers.com\/wp-content\/uploads\/2021\/05\/Mental-Math-Subtraction.png","_links":{"self":[{"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/posts\/112319"}],"collection":[{"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/comments?post=112319"}],"version-history":[{"count":1,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/posts\/112319\/revisions"}],"predecessor-version":[{"id":135783,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/posts\/112319\/revisions\/135783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/media\/112517"}],"wp:attachment":[{"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/media?parent=112319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/categories?post=112319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccssanswers.com\/wp-json\/wp\/v2\/tags?post=112319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nExample:
\n<\/strong>55-9
\nSolution:
\n<\/strong>subtract 9 in two parts. they are 5,4.
\n=55-5-4
\nSubtract first 5 then 4.
\n=50-4
\n=46<\/p>\nSubtract in Parts<\/h3>\n
\nExample:
\n<\/strong>45-23
\nSolution:<\/strong>
\nBreak subtrahend i.e. second number into tens and ones.
\n=45-20-3
\nSubtract tens and then ones
\n=25-3
\n=22<\/p>\nUse Known Subtraction Facts<\/h3>\n
\nSince 15-9=6, we know that 45-9 will end in 6. But it will be in the thirties. So it is 36.<\/p>\n
\n<\/strong>we can add backward. When the two numbers are close to each other this technique works well. Instead of subtracting, check how much you add to the subtrahend in order to get the minuend
\nExample:
\n<\/strong>70-68=?
\nThink 68+__=70
\nAdd UP to find the Difference
\n<\/strong>To find the difference, first, start at the small number and add up until you get to the larger number.
\nExample:
\n<\/strong>85-48
\n48+2=50
\n50+30=80
\n80+5=85
\nwe added 2,30,5 i.e. total of 37.
\n85-48=37.<\/p>\nSubtract an easy Number that is Closer and then Correct the Answer<\/h3>\n
\nExample:<\/strong>
\n34-18=?
\nsince 20 is closer to 18 and easy to subtract 34-20=14. But you subtracted two too many. So add 2 to the answer. i.e. 14+2=16.<\/p>\nCompatible Numbers<\/h3>\n
\nExample:
\n<\/strong>100-34=?
\nx+34=100
\nx=100-34
\nx=66<\/p>\nEqual Addition Strategy<\/h3>\n
\nExample:
\n<\/strong>54-28
\nAdd 2 to both numbers
\n54+2=56
\n28+2=30
\n56-30=26<\/p>\nSubtract from Left to Right<\/h3>\n
\nExample:
\n<\/strong>subtract 4311 from 9542
\n9\u00a0 \u00a05\u00a0 \u00a0 4\u00a0 \u00a02
\n-4\u00a0 \u00a03\u00a0 \u00a01\u00a0 \u00a01
\n<\/u>5\u00a0 \u00a0 2\u00a0 \u00a0 3\u00a0 \u00a0 1<\/u><\/p>\n","protected":false},"excerpt":{"rendered":"