Question

870см ? 10м. 4м?398см. 60см ?550мм

Answer 1

870 см < 10 м.
4 м > 398 см.
60 см > 550 мм

Answer 2

10 м = 1000 см
4м = 400 см 
60 см = 600 мм
870 м < 10 м
4м > 398 см
60 см > 550 мм

Answer 3

It looks like you've provided a list of measurements in different units. Let's convert them all to the same unit for consistency. The common unit we'll use is meters (m).

1. 870 cm = 870/100 m = 8.7 m
2. 10 m = 10 m (no conversion needed)
3. 4 m = 4 m (no conversion needed)
4. 398 cm = 398/100 m = 3.98 m
5. 60 cm = 60/100 m = 0.6 m
6. 550 mm = 550/1000 m = 0.55 m

So the measurements in meters are:

1. 8.7 m
2. 10 m
3. 4 m
4. 3.98 m
5. 0.6 m
6. 0.55 m