Here are 4 activities on the Autumn Statement. They are reasonably self-explanatory and self-contained so they would work as homework or cover if needed. If I was going to pick one to do in class, I would do the Quotation Hunt activity, which can be done in groups to speed it up if you are short on time.
Impact assessment looking at how the policies affect different groups in society
Policy analysis looking at how policies are intended to work and any possible disadvantages
Quotation hunt challenging students to look for quotations from the text to support their claims (also very good case study practice!)
Comprehension multiple choice
Since they don't rely on specific economics knowledge, the latter 2 activities will likely work for all classes, no matter how far through the course they are.
If you are using Microsoft Teams, this link should work so you can make a digital version of the multiple choice questions on Microsoft Forms (you'll need to click 'Duplicate' at the top of the page).
I have based the activities on 3 references, all of which are open-access:
BBC's article: What the Autumn Statement means for you and your money
Executive Summary of the official statement. It is 5 pages long so a good opportunity to get students used to more intimidating texts, as well as a chance for you to explain the role of the Executive Summary. The link in the activity goes to this page with HTML text which makes it accessible for mobile users, but if you are printing the text, I'd recommend using this link. You'll want to print pages 6-10 (nb: the digital page numbers don't match the printed number on the bottom of the page. When printed, the pages will be numbered 1-5 in the corner)
As an aside, if I'm ever printing news articles like those on BBC, I use the PrintFriendly PDF chrome extension to cut down on all of the 'noise' on the page.
There are some nice graphs in the official statement, so if you want more ideas that could be a great place to start.