Question

Operatii
eu unităţile de măsura pentru lungime
1. Calculează
358 m +240 dm - 2 hm + 780 dm =
dm
18 m + 4 km + 50 dm - 30 hm =
m
5 200 cm - 70 dm + 3 600 cm - 18 m =
רון
cm
42 m + 310 dam + 2 000 cm
498 km x 37 -27 000 m: 9 =
390 km - 4200 m + 3 000 hm =
hm​

Answer 1

358 m +240 dm - 2 hm + 780 dm =35,8dm+240dm-20dm+780dm=1 035,8  dm

18 m + 4 km + 50 dm - 30 hm =18m+4000m+0,5m-3000m=1 018,5m

5 200 cm - 70 dm + 3 600 cm - 18 m =5200cm-700cm+3600cm-1800cm=6300cm

42 m + 310 dam * 2 000 cm=42m+3100m*20m=42m+62000m=62042m

498 km x 37 -27 000 m: 9 =498*37km-27000/9m=18426-3000=15426km

390 km - 4200 m + 3 000 hm =39hm-42hm+3000hm=2997

hm​