Question

8дм-6дм= 5дм-20см= 6см-40мм=

Answer 1

2 дм,  30 см или 3 дм, 20мм или 2 см

Answer 2

1.50-20=30
2.60-40=20
3.80-60=20

Answer 3

To solve these subtractions, let's convert all the measurements to the same unit. We'll use centimeters (cm) as the common unit.

Given: 8 dm - 6 dm

1 dm = 10 cm 8 dm = 8 * 10 cm = 80 cm 6 dm = 6 * 10 cm = 60 cm

Therefore, 8 dm - 6 dm = 80 cm - 60 cm = 20 cm.

Next: 5 dm - 20 cm

5 dm = 5 * 10 cm = 50 cm

Therefore, 5 dm - 20 cm = 50 cm - 20 cm = 30 cm.

Lastly: 6 cm - 40 mm

1 cm = 10 mm 6 cm = 6 * 10 mm = 60 mm

Therefore, 6 cm - 40 mm = 60 mm - 40 mm = 20 mm.

Keep in mind that if you need the result in a different unit, you can convert it accordingly.