Question

5дм +1см 8дм-50см 4см 2мм-4 мм

Answer 1

Пошаговое объяснение:

5 дм= 50 см.

50см +1 см= 51 см

8дм= 80 см

80см - 50 см =30 см

4 см 2мм= 42 мм

42мм-4мм = 38 мм

Answer 2

To perform the given arithmetic operations, let's convert all the measurements to the same unit. We'll use the centimeter (cm) as the common unit.

Given: 5 dm + 1 cm = ? 8 dm - 50 cm = ? 4 cm + 2 mm - 4 mm = ?

Converting the measurements: 1 dm = 10 cm 1 mm = 0.1 cm

1. 5 dm + 1 cm 5 dm = 5 * 10 cm = 50 cm

Adding 1 cm: 50 cm + 1 cm = 51 cm

So, 5 dm + 1 cm = 51 cm.

2. 8 dm - 50 cm 8 dm = 8 * 10 cm = 80 cm

Subtracting 50 cm: 80 cm - 50 cm = 30 cm

So, 8 dm - 50 cm = 30 cm.

3. 4 cm + 2 mm - 4 mm Converting 2 mm and 4 mm to cm: 2 mm = 0.2 cm 4 mm = 0.4 cm

Adding and subtracting: 4 cm + 0.2 cm - 0.4 cm = 4.2 cm - 0.4 cm = 3.8 cm

So, 4 cm + 2 mm - 4 mm = 3.8 cm.

Final results: 5 dm + 1 cm = 51 cm 8 dm - 50 cm = 30 cm 4 cm + 2 mm - 4 mm = 3.8 cm.