Maths Skills
11SCI - Mechanics
Finn Le Sueur
2024
Rounding
- Do not round a number if you are going to use it in
another calculation
- You can round answers to 2 decimal
places
What does \(\epsilon 3\) mean on
the calculator?
- \(1\epsilon 3\) is
the calculator’s way of writing \(1 \times
10^{3}\)
- Similarly, \(\epsilon
-3\) means \(\times
10^{-3}\)
- This is called scientific form.
- \(1\epsilon +3 = 1 \times
10^{3} = 1,000\) you move the decimal place
right
- \(1\epsilon -3 = 1 \times
10^{-3} = 0.001\) you move the decimal place
left
- Never write \(\epsilon\) in your equations.
Always use \(\times
10^{x}\)