Question

10 Efectuează operațiile:
a) 12 hm - 3 200 cm + 730 dam = ? m
b) 130 hm +12 000 m - 800 dam = ? km
c) 13 000 mm + 79 hm - 480 dm = ? m
d) 31 km +45 hm - 700 m = ? dam
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Answer 1

Răspuns:

12 hm - 3200 cm + 730 dam =

= 1 200 m - 32 m + 73 m =

= 1 241 m

b) 130 hm + 12.000m - 800 dam =

= 13 km + 12 km - 8 km =

= 17 km

c) 13.000 mm + 79 hm - 480 dm=

= 13 m + 79 00 m - 48 m =

= 7865 m

d) 31 km + 45 hm -700 m =

= 3 100 dam + 450 dam - 70 dam =

= 3 550 dam - 70 dam =

= 3 480 dam