Question

9м-52дм+4м6дм 2дм5см+5дм4см-38см 7дм2см+1дм8см-23см 6м-1м7дм+3м2дм

Answer 1

1)=84 дм
2)=41см
3)=67см
4)=7м5дц

Answer 2

8м8дм
7дм39см
8дм17см
8м9дм

Answer 3

It looks like you've provided a mathematical expression involving various units of measurement. To assist you effectively, could you please specify the operation (addition, subtraction, etc.) you'd like to perform with these values?