Question

4м9дм6см + 8м7дм5см=? 11м7дм4см - 2м9дм8см=?

Answer 1

Ответ:

13м7дм1см

8м7дм6см

Пошаговое объяснение:

Answer 2

4м9дм6см + 8м7дм5см = 12м16дм11см

To add these two measurements, we start by adding the centimeters: 6см + 5см = 11см. Since 11см is greater than or equal to 10см, we carry over 1дм to the dm place and add the remaining 1см to get 7см.

Next, we add the decimeters: 9дм + 7дм = 16дм. Since 16дм is greater than or equal to 10дм, we carry over 1м to the meter place and add the remaining 6дм to get 6дм + 7дм + 1м = 14дм.

Finally, we add the meters: 4м + 8м + 1м = 13м.

Therefore, 4м9дм6см + 8м7дм5см = 13м14дм11см, which simplifies to 12м16дм11см.

11м7дм4см - 2м9дм8см = 9м7дм16см

To subtract these two measurements, we start by subtracting the centimeters: 4см - 8см = -4см. Since we cannot have a negative measurement, we borrow 1дм from the dm place and add it to the centimeters to get 10см - 8см = 2см.

Next, we subtract the decimeters: 9дм - 8дм = 1дм.

Finally, we subtract the meters: 11м - 2м = 9м.

Therefore, 11м7дм4см - 2м9дм8см = 9м1дм2см, which simplifies to 9м7дм16см.