GCSE maths standard form – or ‘scientific notation' – questions appear on many exam papers and you can download the questions here. They can be relatively straightforward although you need to be careful about making sure that you apply the rules.
The main things to remember when working with GCSE standard form questions are:
- Always make sure you check the number of decimal places – particularly counting zeros (it's easy to miss one!)
- Numbers less than zero have a negative index to show that the decimal point has been moved left
- Remember to separate the ‘calculation' from the ‘standard form / scientific notation.' There's a few examples in the videos attached.
- Make sure you change the answer to standard form 13.4 x 10^6 should be 1.34 x 10^7
If you'd like to ask for any more detail, or you're not sure about anything, please do ask a question in the comments section. I'll let you know as soon as I've posted an answer.
The answer videos are given below. To try to shorten the video length (!), I've only answered questions 1, 7 and 14, although here's the complete worked answers.
All very best with your studies.
Standard Form Question 1
Standard Form Question 7
Standard Form Question 14
Watch these videos on YouTube: