Explain with an example how you will use the metre ruler in measuring the length of the pencil if the ends of ruler are broken. 

Convert the following quantities as indicated : 

$2500 \mathrm{kg} =$ _____  $\mathrm{metric} \mathrm{tonne}$.

Convert the following quantities as indicated : 

$150 \mathrm{kg}=$_____ $\mathrm{quintal}$.

Convert the following quantities as indicated : 

$10 \mathrm{lb}=$_____  $\mathrm{kg}$.

Convert the following quantities as indicated : 

$2500 \mathrm{g} =$_____  $\mathrm{kg}$.

Convert the following quantities as indicated : 

$0.01 \mathrm{kg}=$_____  $\mathrm{g}$.

Convert the following quantities as indicated :

$5 \mathrm{mg}=$ _____  $\mathrm{kg}$.