![\"\"](\"https:\/\/storydosee.com\/wp-content\/uploads\/2026\/10\/7eda9568552864041f0adadba6087d53-240x300.jpg\")
<\/p>\nHave you ever seen a simple math puzzle online that divides everyone in the comments?<\/p>\n
This classic equation looks easy at first glance, but it hides a clever trick.<\/p>\n
<\/p>\n
Let\u2019s look at the problem together:<\/p>\n
230 \u2013 220 \u00f7 2 = ?<\/p>\n
One person claims the correct answer is 120.<\/p>\n
On the other hand, a Math PhD claims the answer is 5!<\/p>\n
So, who is actually right?<\/p>\n
Let\u2019s solve the problem step by step to find out.<\/p>\n
First, we must follow the standard order of mathematical operations (PEMDAS \/ BODMAS).<\/p>\n
This rule tells us to perform division before subtraction.<\/p>\n
So, we divide 220 by 2 first.<\/p>\n
220 \u00f7 2 = 110.<\/p>\n
Next, we subtract 110 from 230.<\/p>\n
230 \u2013 110 = 120.<\/p>\n
Based on basic arithmetic, the numeric result of the equation is indeed 120.<\/p>\n
This means the first person calculated the number correctly.<\/p>\n
Does this mean the Math PhD made a mistake?<\/p>\n
Not at all.<\/p>\n
The key to the PhD\u2019s answer lies in punctuation and mathematical notation.<\/p>\n
Notice how the PhD wrote their answer: \u201c5!\u201d<\/p>\n
In mathematics, the exclamation mark (!) is not just for excitement.<\/p>\n
It represents the factorial function.<\/p>\n
A factorial means multiplying a whole number by every whole number below it down to 1.<\/p>\n
So, what is the value of 5! (5 factorial)?<\/p>\n
5! = 5 \u00d7 4 \u00d7 3 \u00d7 2 \u00d7 1.<\/p>\n
Let\u2019s do the math:<\/p>\n
5 \u00d7 4 = 20.<\/p>\n
20 \u00d7 3 = 60.<\/p>\n
60 \u00d7 2 = 120.<\/p>\n
120 \u00d7 1 = 120.<\/p>\n
Therefore, 5! is equal to 120.<\/p>\n
The numerical value of 120 and the mathematical expression 5! are identical.<\/p>\n
In conclusion, both answers are completely correct!<\/p>\n
The first person stated the direct numerical answer.<\/p>\n
The Math PhD expressed the exact same number using factorial notation.<\/p>\n
It is a clever math joke that reminds us to look closely at every symbol!<\/p>\n","protected":false},"excerpt":{"rendered":"
Have you ever seen a simple math puzzle online that divides everyone in the comments? This classic equation looks easy at first glance, but it hides a clever trick. Let\u2019s look at the problem together: 230 \u2013 220 \u00f7 2 = ? One person claims the correct answer is 120. On the other hand, a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6060","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/6060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6060"}],"version-history":[{"count":1,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/6060\/revisions"}],"predecessor-version":[{"id":6062,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/6060\/revisions\/6062"}],"wp:attachment":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}