In the UK, they call scientific notation standard form (source).
Conclude by giving your students these challenges:
- 2018 Math Kangaroo Levels 7-8 Problem #19 by STEM4all
- Six Ten Total by NRICH
- Prison Cells by NRICH
- 2008 AMC 8, Problem 8
- Blip Bleep Bloop by Pierce School: Problem / Solution