Question

2m 3cm + 6m 7cm
3m 14cm + 9m 7cm
3dm 4cm + 7m 6cm
5m 8dm - 42dm
35dm - 85cm
5km - 400m
3m + 5cm - 2dm
8km + 300m + 20m
60cm + 4dm - 30cm​

Answer 1

Răspuns:

Km- hm- dam - m - dm - cm- mm

2m 3cm + 6m 7cm

2m=200 cm

6m=600 cm

203 cm + 607 cm= 810cm=8,10m

3m 14cm + 9m 7cm

3m=300cm

9m=900cm

314 cm+907 cm= 1221 cm= 12,21 m

3dm 4cm + 7m 6cm

3dm=30 cm

34 cm+706 cm=

740 cm=74 dm=7,4m

5m 8dm - 42dm

5m=50dm

58dm-42dm=16 dm=1,6m

35dm - 85cm

35dm=350cm

350cm-85cm=265 cm=26,5dm

5km - 400m

5km = 5000 m

5000 m-400m=4600 m=4,6km

3m + 5cm - 2dm

3m=30 dm=300cm

2 dm=20cm

300 cm+5 cm+20cm

=325 cm=32,5dm=3,25m

8km + 300m + 20m

8 km=8000 m

8000m+300m+20m

=8320m=8,320km

60cm + 4dm - 30cm

4 dm=40cm

60 cm+40cm-30cm=70 cm=7 dm

Explicație pas cu pas: