Question

12м6дм-8м23дм= 48ц23кг+7ц7кг= 9мин36с-158с=

Answer 1

12м6дм-8м23дм=10м26дм-8м23дм=
=2м3дм

48ц23кг+7ц7кг=5 50кг

9мин36сек-158сек=6мин216сек-158сек=
=6мин58сек

Answer 2

Let's solve each of the expressions step by step:

1. 12м6дм - 8м23дм:

To subtract lengths with different units, we need to convert them to the same unit. Here, both lengths are in decimeters (dm).

12m = 120dm (since 1 meter = 10 decimeters) 6dm = 6dm

8m = 80dm (since 1 meter = 10 decimeters) 23dm = 23dm

Now, we can perform the subtraction:

(120dm + 6dm) - (80dm + 23dm) = 126dm - 103dm = 23dm

So, the result is 23 decimeters.

2. 48ц23кг + 7ц7кг:

It seems like we have two expressions with a similar format. I'll assume ц stands for centimeters and кг stands for kilograms. To add these, we need to convert them to the same units.

48ц = 48cm 23кг = 23kg

7ц = 7cm 7кг = 7kg

Now we can perform the addition:

(48cm + 7cm) = 55cm (23kg + 7kg) = 30kg

So, the result is 55 centimeters and 30 kilograms.

3. 9мин36с - 158с:

Here, we are subtracting time values. Let's first convert the minutes to seconds so that we have both values in seconds.

9 minutes = 9 * 60 seconds = 540 seconds 36 seconds = 36 seconds

Now we can perform the subtraction:

(540 seconds + 36 seconds) - 158 seconds = 576 seconds - 158 seconds = 418 seconds

So, the result is 418 seconds.

To summarize the answers:

1. 12м6дм - 8м23дм = 23 decimeters.
2. 48ц23кг + 7ц7кг = 55 centimeters and 30 kilograms.
3. 9мин36с - 158с = 418 seconds.