People using Blogger blogs can show up to 3 Adsense ads in between posts .Make sure that ads are not placed below post title as they are against adsense TOS .
Here’s how you can do this ,
From dashboard , open the target blog’s layout and click on edit for Blog Posts . A new window will open as shown below.
Click on show Ads Between Posts. Now you have to enter your adsense email and details on the following form .
After singing in , they will send you a verification email to provide access for Adesnse in Blogger .
Verify email and return to show ads between posts menu . Choose the suitable color and format of your ad and save your template .
Note :Find out how you can choose matching color for your adsense ad titles and background