Question

calculeaza in unitatile cerute

7hm+70cm=dm



2km+200m=hm




80dam-800m=dm




7km-300cm=m

Answer 1

a).7 hm+70 cm=? dm
7 hm=7000 dm
70 cm=7 dm
7000 dm+7 dm=7007 dm.

b).2 km+200 m=? hm
2 km=20 hm
200 m=2 hm
20 hm+2 hm=22 hm.

c).80 dam-800 m=? dm
80 dam=8000 dm
800 m=8000 dm
8000 dm-8000 dm=0 dm.

d).7 km-300 cm=? m
7 km=7000 m
300 cm=3 m
7000 m-3 m=6997 m.

Answer 2

7hm-7000dm+70cm-7dm=7007dm
2km-20hm+200m-2hm=22hm
80dam-8000dm-800m-8000dm=0dm
7km-7000m-300cm-3m=6997m