a)
12 hm - 3200 cm + 730 dam = ? m
= 1 200 m - 32 m + 7 300 m =
= 1 168 m + 7 300 m =
= 8 468 m
___________________________
b)
130 hm + 12000 m - 800 dam = ? km
= 13 km + 12 km - 8 km =
= 25 km - 8 km =
= 17 km
________________________________
c) 13000 mm + 79 hm - 480 dm = ? m
= 13 m + 7 900 m - 48 m =
= 7 913 m - 48 m =
= 7 865 m
________________________________
d) 31 km + 45 hm - 700m = ? dam
= 3 100 dam + 450 dam - 70 dam =
= 3 550 dam - 70 dam =
= 3 480 dam
