Question

8m-4dm=. 6m-9dm=. 2m6dm+4dm =.

Answer 1

6м-9дм = 60дм-9дм = 51дм = 5м 1дм

2м6дм+4дм = 2м 10дм = 3м

Answer 2

To solve these arithmetic expressions, let's convert the measurements to a consistent unit (meters) and then perform the calculations.

1. 8m - 4dm: To convert decimeters (dm) to meters (m), we divide by 10 since there are 10 decimeters in a meter. 8m - 4dm = 8m - (4dm / 10) = 8m - 0.4m = 7.6m

2. 6m - 9dm: Converting 9dm to meters: 6m - 9dm = 6m - (9dm / 10) = 6m - 0.9m = 5.1m

3. 2m 6dm + 4dm: To add meters and decimeters, we need to convert the decimeters to meters before performing the addition. 2m 6dm + 4dm = 2m + (6dm / 10) + (4dm / 10) = 2m + 0.6m + 0.4m = 2m + 1m = 3m

So, the solutions are:

1. 8m - 4dm = 7.6m
2. 6m - 9dm = 5.1m
3. 2m 6dm + 4dm = 3m