Question

1) 65hm=?m
27m=?mm
300m=?dam
45000cm=?m
80km=?m
4000dam=?km
2) 7km-14hm=?m
200dm+200dam=?m
3) Lungimea unui dreptunghi este_4m jar latimea este 7dm.
Cati centimetri are perimetrul dreptunghiul? Va rg e urgent!! Dau coroana!!! ​

Answer 1

1) 65hm=6500m

27m=27000mm

300m=30dam

45000cm=450m

80km=80000m

4000dam=40km

2) 7km-14hm=?m

7000m-1400m=5600m

200dm+200dam=?m

20m+2000m=2020 m

3.L=4m=400cm

l=7dm=70cm

P=2l+2L

P=2×70+2×400

P=140+800

P=940cm