Question

1) Completeaza:
3 km 4 hm 5 dam = ............ m
7 hm 2 dam 3 m = .....m
7 dm 9 cm 5 mm = ............mm
3 dam 4 m 2 dm = ..... cm
2) Un biciclist a parcurs in 3 zile 120 km. Stiind ca in primele doua zile a prcurs 90 km, iar in ultimele doua zile 70 km, afla cati km a parcurs in fiecare zi.
3) Mama a cumparat 500 cm de panza alba, 6000 mm de panza rosie si 30 dm de panza albastra. Cati metri de panza a cumparat in total?
4) Completeaza pentru a obtine egalitati:
5 dm+.....cm=1m
....dm-15cm=2450 mm
900mm-....cm= 30 cm
50 hm+......dam=10km

Answer 1

3 km 4 hm 5 dam = 3000 m+400m+50m=3450 m
7 hm 2 dam 3 m = 700 m+20m+3m= 723m
7 dm 9 cm 5 mm = 700mm+90mm+5mm=795mm
3 dam 4 m 2 dm = 3000cm+400cm+20cm=3420 cm

2) Un biciclist a parcurs in 3 zile 120 km. Stiind ca in primele doua zile a prcurs 90 km, iar in ultimele doua zile 70 km, afla cati km a parcurs in fiecare zi.
a=km ziua 1
b=km ziua 2
c=km ziua 3
a+b=90
b+c=70
a+b+c=120
c=120-(a+b)=120-90=30 km
b=70-c=70-30=40 km
a=90-40=50 km

3) Mama a cumparat 500 cm de panza alba, 6000 mm de panza rosie si 30 dm de panza albastra. Cati metri de panza a cumparat in total?
500 cm= 5 m
6000 mm=6 m
30 dm=3 m
5+6+3=14 m

4) Completeaza pentru a obtine egalitati:
5 dm+95 cm=1m
5dm=0,5 m
1m-0,5m=0,95m

26 dm-15cm=2450 mm
15 cm=150 mm
1 dm=100 mm
2450mm+150 mm=2600mm=26dm

900mm-60cm= 30 cm
900mm=90cm
90cmm-30cm-60cm

50 hm+500 dam=10km
50 km=5 km
1 dam=0,01 km