These fluctuations in air pressure are caused by a local disturbance to the air pressure, which might be sudden and transient – for example, when a paper bag is b]]>

These fluctuations in air pressure are caused by a local disturbance to the air pressure, which might be sudden and transient – for example, when a paper bag is b]]>

So 10^{3} ÷ 10^{2} = 10^{1} and 10^{6} ÷ 10^{2} = 10^{4}, which suggests that dividing the powers of ten means subtracting the powers. You can see that]]>

So 10^{3} ÷ 10^{2} = 10^{1} and 10^{6} ÷ 10^{2} = 10^{4}, which suggests that dividing the powers of ten means subtracting the powers. You can see that]]>
^{−3} mean? What is the result of the following calculation?

100 ÷ 100 000

What you are actually being asked to find is:

But look at the calculation again. Using the]]>
^{−3} mean? What is the result of the following calculation?

100 ÷ 100 000

What you are actually being asked to find is:

But look at the calculation again. Using the]]>

Find each of the following by hand, giving your answers both as a power of ten and as a decimal number. You will use these answers as a check on your calculator work in the next question.

Find each of the following by hand, giving your answers both as a power of ten and as a decimal number. You will use these answers as a check on your calculator work in the next question.