Question

2м-4дм=? 1м-3см=? 9дм:2=? 2м:5=? 2дм:4см=?

Answer 1

20дм-4дм=16дм
100см-3см=97см
9дм:2=4,5дм
2м:5=40см=0.4м
20см:4см=5

Answer 2

Хм не успел жалко)))

Answer 3

To perform the calculations, we need to remember the following conversion factors:

1 meter (m) = 10 decimeters (dm) 1 meter (m) = 100 centimeters (cm) 1 decimeter (dm) = 10 centimeters (cm)

Now, let's solve each expression:

1. 2m - 4dm: Since 1 meter equals 10 decimeters, we can subtract 4 decimeters from 2 meters: 2m - 4dm = 2m - (4dm * (1m / 10dm)) = 2m - 0.4m = 1.6 meters

2. 1m - 3cm: Since 1 meter equals 100 centimeters, we can subtract 3 centimeters from 1 meter: 1m - 3cm = 1m - (3cm * (1m / 100cm)) = 1m - 0.03m = 0.97 meters

3. 9dm ÷ 2: Since 1 meter equals 10 decimeters, we can convert 9 decimeters to meters and then divide by 2: 9dm ÷ 2 = (9dm * (1m / 10dm)) ÷ 2 = 0.9m ÷ 2 = 0.45 meters

4. 2m ÷ 5: Divide 2 meters by 5: 2m ÷ 5 = 0.4 meters

5. 2dm ÷ 4cm: Since 1 decimeter equals 10 centimeters, we can convert 2 decimeters to centimeters and then divide by 4 centimeters: 2dm ÷ 4cm = (2dm * 10cm/dm) ÷ 4cm = 20cm ÷ 4cm = 5

So, the results are:

1. 2m - 4dm = 1.6 meters
2. 1m - 3cm = 0.97 meters
3. 9dm ÷ 2 = 0.45 meters
4. 2m ÷ 5 = 0.4 meters
5. 2dm ÷ 4cm = 5