0.00081 in scientific notation is:

7.2 x 10^5 written in ordinary notation is:

The result of (2 x 10^3)(4 x 10^2) is:

0.006 m is equal to:

The result of (8 x 10^6)/(2 x 10^2) is:

3.5 km is equal to:

Which way of writing a force value follows SI rules?

Which prefix has the symbol micro (u) and represents:

Which compound prefix is not allowed in SI?

Which prefix has the symbol M?

Which instrument is most suitable for measuring the length of a classroom?