3м6дм-2м8дм+14дм+5м=?

Question

3м6дм-2м8дм+14дм+5м=?

Answer 1

1 м=10 дм

3м6дм-2м8дм+14дм+5м=(30дм+6дм)-(20дм+8дм)+14дм+50дм=36дм-28дм+14дм+50дм=72дм=7м2дм

 

 

 

 

Answer 2

30дм6дм-20дм8дм+14дм+50дм=36дм-28дм+14дм+50дм=72дм или 7 м 2 дм.