Posted by samantha on .
1. 657 litres mm * 100 = answer * 10
2. 657 litres ml *1000
3. 54268g kg /1000 =
4.243cm2  m2 /100
a) 147  486 + 547
b)7(5) +4 (8)
c)9 2/3 7 3/4
d)66 2/3 % of R900
e) 5/8 * 0,64

math 
PsyDAG,
I am not sure what you are asking.
1. Litres (liters) measure volume, while mm measure length.
The other conversions are correct.
I assume that you can do the problems ae. If not, repost indicating where you have problems.
I hope this helps. Thanks for asking.