Question

7м 8 см-6м9дм решить в м и дм ?????????????????

Answer 1

1м = 10дм

7м*8м-6м*9дм
56м-6м*0,9м
56м-5,4м
50,6 м
Ответ : 50,6м
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70дм*80дм-60дм*9дм
5600дм-540дм
5060дм
Ответ : 5060дм

Answer 2

To subtract 6 meters 9 decimeters from 7 meters 8 centimeters, you'll need to perform the subtraction separately for meters and decimeters. First, convert everything to decimeters, perform the subtraction, and then convert the result back to meters and decimeters.

1 meter = 10 decimeters 1 centimeter = 0.1 decimeters

Given: 7 meters 8 centimeters = 7 meters + 8 * 0.01 meters = 7 meters + 0.08 meters = 7.08 meters

6 meters 9 decimeters = 6 meters + 9 decimeters = 6 meters + 90 decimeters = 96 decimeters

Now, subtract 96 decimeters from 7.08 meters:

7.08 meters - 96 decimeters = 7.08 meters - 9.6 meters = (7.08 - 9.6) meters = -2.52 meters

Since the result is negative, it means the subtraction is not valid or possible in this context.

Therefore, the result of subtracting 6 meters 9 decimeters from 7 meters 8 centimeters is -2 meters and 52 centimeters (or -2 meters and 5.2 decimeters).