{"id":4426,"date":"2026-09-14T22:03:17","date_gmt":"2026-09-14T22:03:17","guid":{"rendered":"https:\/\/storydosee.com\/?p=4426"},"modified":"2026-09-14T22:03:17","modified_gmt":"2026-09-14T22:03:17","slug":"can-you-solve-7-3-x-0","status":"publish","type":"post","link":"https:\/\/storydosee.com\/?p=4426","title":{"rendered":"Can You Solve 7 + 3 \u00d7 0!?"},"content":{"rendered":"

At first glance, this little math puzzle looks almost too easy.<\/p>\n

You see three numbers and a few familiar symbols.<\/p>\n

\"\"<\/p>\n

But there is one small detail in this puzzle that changes everything.<\/p>\n

Look closely at the expression.<\/p>\n

It says 7 + 3 \u00d7 0!<\/p>\n

That little exclamation mark after the zero is not just there for decoration.<\/p>\n

It is a mathematical symbol called a factorial.<\/p>\n

And that is where this simple-looking puzzle becomes a little more interesting.<\/p>\n

Before rushing to the answer, it helps to remember one basic rule.<\/p>\n

When an expression contains different mathematical operations, you cannot always solve it from left to right.<\/p>\n

Multiplication is normally done before addition.<\/p>\n

So in this puzzle, we need to deal with the part 3 \u00d7 0! before adding 7.<\/p>\n

But first, we have to figure out what 0! means.<\/p>\n

A factorial is written with an exclamation mark after a number.<\/p>\n

For example, 3! means 3 \u00d7 2 \u00d7 1.<\/p>\n

So 3! = 6.<\/p>\n

Similarly, 4! means 4 \u00d7 3 \u00d7 2 \u00d7 1, which gives 24.<\/p>\n

Now you might wonder what happens when the number is zero.<\/p>\n

This is where many people hesitate.<\/p>\n

You might think that 0! should equal zero because there is a zero involved.<\/p>\n

But in mathematics, 0! is defined as 1.<\/p>\n

This is a standard mathematical rule, and it is important in many areas of mathematics.<\/p>\n

So the tricky part of the puzzle is actually quite simple once you notice the factorial.<\/p>\n

Instead of treating 0! as zero, we replace it with 1.<\/p>\n

Now our expression becomes 7 + 3 \u00d7 1.<\/p>\n

The puzzle is starting to look much easier.<\/p>\n

Next, we follow the usual order of operations.<\/p>\n

Multiplication comes before addition.<\/p>\n

So we calculate 3 \u00d7 1, which gives us 3.<\/p>\n

Then we add that result to 7.<\/p>\n

That gives us 7 + 3 = 10.<\/p>\n

So the final answer is 10.<\/p>\n

The trick is not really the multiplication.<\/p>\n

It is noticing that the tiny exclamation mark completely changes the meaning of the zero.<\/p>\n

If you quickly saw the zero and thought, \u201c3 times zero is zero,\u201d you are not alone.<\/p>\n

That is exactly the kind of quick reaction this puzzle is designed to encourage.<\/p>\n

The important lesson is to slow down for just a second and look at every symbol before calculating.<\/p>\n

Sometimes, one tiny mark can completely change the answer.<\/p>\n

So if you got 10, you caught the hidden trick.<\/p>\n

And if you got 7, now you know exactly where the puzzle tried to fool you.<\/p>\n

The correct answer is 10.<\/p>\n","protected":false},"excerpt":{"rendered":"

At first glance, this little math puzzle looks almost too easy. You see three numbers and a few familiar symbols. But there is one small detail in this puzzle that changes everything. Look closely at the expression. It says 7 + 3 \u00d7 0! That little exclamation mark after the zero is not just there […]<\/p>\n","protected":false},"author":1,"featured_media":4428,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4426","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/4426","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=4426"}],"version-history":[{"count":1,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/4426\/revisions"}],"predecessor-version":[{"id":4429,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/posts\/4426\/revisions\/4429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=\/wp\/v2\/media\/4428"}],"wp:attachment":[{"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/storydosee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}