6m
6m =60dm=600cm=(600cm×10)=6000mm
By unit of length and distance and conversion ,we can say that 1 m =10 dm 60 dm= 6m
To answer this, you have to convert the metres value into decametres. There are 10 decametres in 1 metres, so to convert from metres to decametres you have to multiply by 10. Doing this gives us: 6x10 = 60. And so the question can be rewritten as: "is 600dm greater than 60dm?" Clearly the answer is yes.
Since 1 m = 10 dm, then 1 m 60 dm + 30 dm = 70 dm + 30 dm = 100 dm = 10m or 1 m 60 dm + 30 dm = 1m 90dm = 10 m.