Homework help PLEASE ???

Question

I need help understanding what this question is asking it says:

[Using dimensional analysis do 16 calculation of the conversion from the data table, with correct significant figures and units.]

So please if you could break the question down and help me understand it more better or even a little bit that will be a lot of help and greatly appreciated

This is the table:

42.8370m 4283.70cm 42837.0mm .0428370km

11.9300m 1193.00cm 11930.0mm .0119300 km

1.6000m 160.00cm 16000.0mm .016000 km

1.5000m 1500.0cm 15000.0 mm .015000 km

Answer 1

I'm stumped at what they are asking either.  These are all metric numbers, so multiples of 10 apply.  For example, on the first line, since there are 100 centimeters is a meter, the second number is multiplied by 100 (or just move the decimal place over two to the right; then since there are 10 millimeters in a centimeter, the third number is multiplied by 10 (or just move the decimal place over one more to the right); since there are 1000 meters in a kilometer, the fourth number is divided by 1000 (or the decimal place is moved three places to the left).