How to Add Numbered Pagination in Blogger?
1.The firest thing you need to do is to login into your Google account.
2.Once logged in go to Blogger Dashboard
>> Template >> Edit HTML and search for the Skin tag ]]></b:skin>.
3.After finding the skin tag, just above it paste the following piece of coding.
.showpageNum a {
background: #02ab68;
padding: 5px;
padding-left: 10px;
border: 1px solid #b9b9b9;
padding-right: 10px;
margin-right: 5px;
color: #000;
font-weight: bold;
}
.showpage a {
background: #02ab68;
padding: 5px;
padding-left: 10px;
border: 1px solid #b9b9b9;
padding-right: 10px;
margin-right: 5px;
color: #000;
font-weight: bold;
}
.showpageArea {
float: left;
}
.feed-links {
display: none;
}
.showpageArea a {
float: left;
font-size: 15px;
color: #fff!important;
padding-left: 15px;
padding-right: 15px;
}
.showpagePoint {
float: left;
font-size: 15px;
padding-left: 15px;
padding-right: 15px;
}
.showpageArea a {
text-decoration: none;
}
.showpageArea {
float: left;
width: 363px;
margin-top: 10px;
}
Now once the style sheet is added to your template,
it is the time to add the JavaScript coding 
that would turn the ordinary looking order/newer post buttons into a robust and user-friendly 
numeric pagination. Search for the ending </body> 
tag and just above it paste the following JavaScript coding. 
Once everything is done press “Save Template”
button located on the top right corner of your screen.
<!--Page Navigation Starts--> <b:if cond='data:blog.pageType != "item"'> <b:if cond='data:blog.pageType != "static_page"'> <script type='text/javascript'> var pageCount=6; var displayPageNum=6; var upPageWord ='Previous'; var downPageWord ='Next'; </script> <script src='http://templateism.com/js/blogger_pagenavi_min.js' type='text/javascript'/> </b:if> </b:if> <!--Page Navigation Ends -->
