A cuboid has a dimension of 3 cm x 5.5 cm x 4 cm.Calculate its volume,in m3, and express the answer in standard form.
Confused with this tricky questions.
+118609 Firstly standard form is another name for scientific notation.
It is easiest to conver everything to metres first
0.03*0.055*0.04
$${\mathtt{0.03}}{\mathtt{\,\times\,}}{\mathtt{0.055}}{\mathtt{\,\times\,}}{\mathtt{0.04}} = {\mathtt{0.000\: \!066}}$$
It is 6.6 because you have to have one non-zero digit in front of the decimal point.
It is 5 because I moved the decimal point 5 places. It is negative because it is a very little number. 
+118609 Firstly standard form is another name for scientific notation.
It is easiest to conver everything to metres first
0.03*0.055*0.04
$${\mathtt{0.03}}{\mathtt{\,\times\,}}{\mathtt{0.055}}{\mathtt{\,\times\,}}{\mathtt{0.04}} = {\mathtt{0.000\: \!066}}$$
It is 6.6 because you have to have one non-zero digit in front of the decimal point.
It is 5 because I moved the decimal point 5 places. It is negative because it is a very little number.
