Short PowerPoint that explains significant figures regarding larger numbers (not any that start with 0) in the context of followers of celebrities on Twitter. One of the slides gives you a suggestion for how they could lay out the work in their books, this may or may not be useful. I will add a second PowerPoint at a later date regarding small numbers (anything starting with 0) when I can think of a context to put it in. Any ideas or suggestions would be most welcome!
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