Question

Am nevoie dau 15P
Exercitiul.1 Completati casuta libera:
1/2km=m
1/5m=cm
1/20m=cm
3/10hm=m
4/5m=mm
1/8dam=cm
3/4m=cm
1/2cm=mm
1/16km=dm
Exercitiul.2 Completati casuta libera:
40cm+.........dm=1m
7km-........m=69 hm
18dam+100cm=.........m
1km+2dam=.........m
.........cm=2dm+5m
1km+2hm+3dam=.........m
4dm+.........cm+2m=2500mm​

Answer 1

Explicație pas cu pas:

1. Se transforma numaratorul in unitatea de masura finala si apoi se efectueaza impartirea:

1/2km=1000/2m=500m

1/5m=100/5cm=20cm

1/20m=100/20cm=5cm

3/10hm=300/10m=30m

4/5m=4000/5mm=800mm

1/8dam=1000/8cm=125cm

3/4m=300/4cm=75cm

1/2cm=10/2mm=5mm

1/16km=10000/16dm=625dm

2. Se transforma toti termenii in aceeasi unitate de masura:

4dm+.....dm=10dm=>6dm in spatiul liber

7000m-.....m=6900m=>100m in spatiul liber

180m+1m=181m

1000m+20m=1020m

520cm=20cm+500cm

1000m+200m+30m=1230m

40cm+....cm+200cm=250cm am transformat totul in cm

240cm+...cm=250cm=>10cm in spatiul liber