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MihaelaHemmo96
a fost răspuns

VA ROG AJUTATI-MA
1.Calculeaza in mm lungimile urmatoare:
2km 3 dam 5 dm + 7 km 9 dam 7 dm
5 dm 3 cm + 3 m 7 cm
5 hm 2 m 3 cm + 5 hm 10 m 7 dm

2. Exprima lungimile urmatoare numai in metri:
a. 2km 9hm 6m =
b. 5km 4dam 7m =
c. 6km 3 dam =
d. 2km 5m =
e. 7km 2 hm =
f. 6km 2hm 8m =

Răspuns :

1 km = 10000 mm
1km= 1000 metri
Lenutaboicu
2km 3dam 5dm + 7km9dam7dm =
2 000 000 + 30 000 + 500 + 7 000 000 + 90 000 + 700 = 2821200 mm
5 dm + 3cm + 3m + 7 cm =
500 + 30 + 3000 + 70 = 3600 mm
5 hm + 2m +3cm +5hm +10 m + 7 dm =
500000 + 2000 + 30 + 500000 + 10000 + 700 = 1012730 mm

2.
2km + 9hm +6m = 2000 + 900 + 6  =2906 m
5 km + 4 dam +7 m = 5000 + 40 + 7 = 5047 m
6km + 3 dam = 6000 + 30 = 6030 m
2km + 5m = 2000 + 5 = 2005m
7km + 2hm = 7000 + 200 = 7200 m
6 km + 2 hm +8 m = 6000 + 200 + 8 = 6208 m